Update warnings when calling `tezos-` prefixed executables

Context

Updates the warning message to suggest the use of the unversioned octez name. Also, attempted to improve the readability of the warning message by annotating the names with the <kwd> semantic tag.

Manually testing the MR

$ ls -l | grep ^l | awk '{print $9}' | while read line; do ./$line 2>&1 | head -4; done
Warning:
  The executable with name tezos-accuser-014-PtKathma has been renamed to octez-accuser-PtKathma. The name tezos-accuser-014-PtKathma is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-accuser-015-PtLimaPt has been renamed to octez-accuser-PtLimaPt. The name tezos-accuser-015-PtLimaPt is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-accuser-alpha has been renamed to octez-accuser-alpha. The name tezos-accuser-alpha is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-admin-client has been renamed to octez-admin-client. The name tezos-admin-client is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-baker-014-PtKathma has been renamed to octez-baker-PtKathma. The name tezos-baker-014-PtKathma is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-baker-015-PtLimaPt has been renamed to octez-baker-PtLimaPt. The name tezos-baker-015-PtLimaPt is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-baker-alpha has been renamed to octez-baker-alpha. The name tezos-baker-alpha is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-client has been renamed to octez-client. The name tezos-client is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-codec has been renamed to octez-codec. The name tezos-codec is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-node has been renamed to octez-node. The name tezos-node is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-protocol-compiler has been renamed to octez-protocol-compiler. The name tezos-protocol-compiler is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-proxy-server has been renamed to octez-proxy-server. The name tezos-proxy-server is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-signer has been renamed to octez-signer. The name tezos-signer is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-tx-rollup-client-014-PtKathma has been renamed to octez-tx-rollup-client-PtKathma. The name tezos-tx-rollup-client-014-PtKathma is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-tx-rollup-client-015-PtLimaPt has been renamed to octez-tx-rollup-client-PtLimaPt. The name tezos-tx-rollup-client-015-PtLimaPt is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-tx-rollup-client-alpha has been renamed to octez-tx-rollup-client-alpha. The name tezos-tx-rollup-client-alpha is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-tx-rollup-node-014-PtKathma has been renamed to octez-tx-rollup-node-PtKathma. The name tezos-tx-rollup-node-014-PtKathma is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-tx-rollup-node-015-PtLimaPt has been renamed to octez-tx-rollup-node-PtLimaPt. The name tezos-tx-rollup-node-015-PtLimaPt is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning:
  The executable with name tezos-tx-rollup-node-alpha has been renamed to octez-tx-rollup-node-alpha. The name tezos-tx-rollup-node-alpha is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.
Warning
  The executable with name tezos-validator has been renamed to octez-validator. The name tezos-validator is now
  deprecated, and it will be removed in a future release. Please update
  your scripts to use the new name.

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR