tools: Fix incorrectly quoted * in bash scripts

[anomiex]

Proposed changes:

In a few places, we do something like [[ "$var" == "*/filename" ]], which checks for the variable being literally "*/filename" rather than interpreting the * as a glob as intended.

This removes the unnecessary quotes so it works right.

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

None

Does this pull request change what data or activity we track or use?

No

Testing instructions:

• Try running something like tools/composer-update-monorepo.sh projects/plugins/beta/composer.lock or tools/version-packages.sh projects/plugins/beta/composer.json, see if it works right rather than complaining that the directory doesn't exist.

[github-actions]

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