2.2.0: Abseil 20230802.1 and smaller compiled gems

Changed

• Upgrade the bundled version of Abseil to 20230802.1.
• Upgrade MiniPortile to 2.8.5 which significantly reduces the size of the precompiled native gems (up to 45%) due to its switch to build Abseil in Release mode.

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SHA256 checksums:

2bf4905969d36b17df14c034bc051f0b7eac2a2317a93b0a02479e11f9032e73  re2-2.2.0-aarch64-linux.gem
69cf9926935a1bb8cfccda8632ed20cc72153c038cf7a70ea1d9b890d6caa477  re2-2.2.0-arm-linux.gem
3e6a3dfe649539309d82190988febc82b1bce15c33abf84fe9359daeca23cbfa  re2-2.2.0-arm64-darwin.gem
5f49ffc900d42799761ac1c51ecc6b4aa56d0dc9d5dc20e2afe2f48b6bd03510  re2-2.2.0-x64-mingw-ucrt.gem
129f31a45d4ae940ccdcc8cfce0cc8c0ac8bc755932b05f771522bf531f114c8  re2-2.2.0-x64-mingw32.gem
0a650b420d914f2f28b40993bf1933345f44f7829ceee782a29827a935b2f7ce  re2-2.2.0-x86-linux.gem
62bc3f6773f582500fb7e7a902a23f6b316198582e66928e9c8a8dec77b5663d  re2-2.2.0-x86-mingw32.gem
682a71da596a863637f501ef688db957f3bd3d1735852d5284c808e1209837a6  re2-2.2.0-x86_64-darwin.gem
f501b94d98b61f0efaac33d7496b1467d4e79b8bc324b5986cbd2d8c86746aa6  re2-2.2.0-x86_64-linux.gem
cfb28090edc30f236b965244942a84cb219ca522e92d6da1deb461597e3ceca8  re2-2.2.0.gem