Improve logic around removeAll tag and newer gradle versions

[a-maurice]

Description

Provide details of the change, and generalize the change in the PR title above.

Improve the logic to only add the property removeAll tag if the gradle version being used is old enough that it doesn't support the property tag in the manifest merger. By default this should apply to Unity 2022+.

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Testing

Describe how you've tested these changes.

Testing this locally across both older and newer Unity versions.

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Type of Change

Place an x the applicable box:

• Bug fix. Add the issue # below if applicable.
• New feature. A non-breaking change which adds functionality.
• Other, such as a build process or documentation change.

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#945