ci: Handle `ccache` in the proper way in "ARM64 Android APK" task #25475

On the master branch, there are some flaws when using ccache in the "ARM64 Android APK" CI task:

• no ccache statistics printed
• no our custom cache size limit applied (it has grown up to ccache cache size is 4243Mb. for now)

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Useful skills:

• basic Bash skills
• basic understanding of Cirrus CI

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Probably, only a few modifications in ci/test/06_script_a.sh are required.