fix: correct update.sh script help

[MikeMcC399]

• closes update -h script help option non-working examples #2412

Description

In the update.sh script:

• update example options to use current Node.js versions and latest Debian release (trixie) and ensure the accuracy of examples
• mark the -s (security option) as reserved. It currently has no effect, however the option is still called, so it needs to be preserved for backwards compatibility, and as a placeholder if it is needed again in future
  

  docker-node/build-automation.mjs

  Line 92 in 73b535d

  const { stdout } = await exec(`./update.sh ${newVersion.isSecurityRelease ? "-s " : ""}${version}`);

Motivation and Context

The help text invoked with ./update.sh -h has several inaccuracies.

• specifying EOL Node.js versions, such as 8, attempts to update all current versions
• specifying . alpine on its own also attempts to update all variants
• the -s security option no longer has any effect

Testing Details

Execute ./update.sh -h and then invoke each one of the listed examples. Confirm that the logs are consistent with the help description.

Example Output

$ ./update.sh -h

  Update the node docker images.

  Usage:
    ./update.sh [-s] [MAJOR_VERSION(S)] [VARIANT(S)]

  Examples:
    - update.sh                         # Update all images
    - update.sh -s                      # Reserved for security update of all images
    - update.sh 24                      # Update all variants of version 24
    - update.sh 22,24                   # Update all variants of version 22 and 24
    - update.sh -s 24                   # Reserved for security update of version 24
    - update.sh . alpine3.23            # Update the alpine3.23 variant for all versions
    - update.sh 24 alpine3.23           # Update only alpine3.23's variants for version 24
    - update.sh . trixie                # Update the trixie variant for all versions
    - update.sh 24 trixie,trixie-slim   # Update only trixie & trixie-slim variants for version 24
    - update.sh -s 24 bullseye          # Reserved for security updates of bullseye variant for version 24

  OPTIONS:
    -s Reserved for security updates. The results are identical whether or not the -s option is specified,
       as this option is currently inactive.
    -h Show this message

Types of changes

• Documentation
• Version change (Update, remove or add more Node.js versions)
• Variant change (Update, remove or add more variants, or versions of variants)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Other (none of the above)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• All new and existing tests passed.

[MikeMcC399]

Conflicts with #2421 so putting into draft state with preference given to other PR.