chore(deps): update Sentry Android Gradle Plugin to v6.15.0 #8198

Job	Run time
Ready-to-merge gate / Missing "ready-to-merge" label	4s
auth_token_check / auth_token_check	5s
detect-changes	-1s
diff_check	-1s
Build RN ${{ matrix.rn-version }} ${{ matrix.rn-architecture }} ${{ matrix.engine }} ${{ matrix.platform }} ${{ matrix.build-type }} ${{ matrix.ios-use-frameworks }}	0s
metrics	-1s
Test RN ${{ matrix.rn-version }} ${{ matrix.rn-architecture }} ${{ matrix.engine }} ${{ matrix.platform }} ${{ matrix.build-type }} ${{ matrix.ios-use-frameworks }} on ${{ matrix.runner_provider }}	-1s
	5s

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