2.8.0: RE2 2024-02-01 and Abseil 20240116.0

Changed

• Upgrade the bundled version of RE2 to 2024-02-01.
• Upgrade the bundled version of Abseil to 20240116.0.

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SHA256 checksums:

c99efc211f2cd248ae5249053c24a000374ebc537c947886d3e32914c6ae2385  re2-2.8.0-aarch64-linux.gem
18e3c9a0d418ca3a9a50eecad0e356efbb122e72eb27a8f63d1f21779dab742c  re2-2.8.0-arm-linux.gem
962bad5c8de0757b059eff8922c3de31830a6710c418a83f2eab2b8253b8a0bf  re2-2.8.0-arm64-darwin.gem
2aefc3e6f49645c22135da6e01b5c291ebfd755974383cd610c547f48c1324eb  re2-2.8.0-x64-mingw-ucrt.gem
9ee53a99c2d4513b4dd4d619b30707d532ca2dea5ae22e95d3b5390913084b22  re2-2.8.0-x64-mingw32.gem
dd01877e68c158ad20f16b9bb207f957b9f0057ea27a4c6ad7057fa2b38ab59c  re2-2.8.0-x86-linux.gem
e3978794526c237dade22f1e4ce00c265c6bfc92f455ff6a61ddf44d14d373a2  re2-2.8.0-x86-mingw32.gem
8819a61a5affe2432e47a8e13a2f406b2afca72387564aab4f3219e018a6d992  re2-2.8.0-x86_64-darwin.gem
b2713fac3e2e56f7b9984527aeba5e3b96406fc209e6d564152f043a5b14f76a  re2-2.8.0-x86_64-linux.gem
8982d26cbfc45242afa6e1c7a5742590ef77f54cfbaca76b6f2b603e05395bf7  re2-2.8.0.gem