chore: Update msrv to 1.77 and test it in CI #2689

Job	Run time
fmt check	4s
tests (windows, x86_64-pc-windows-msvc, windows-latest)	4m 39s
test_tao_macros	2m 35s
tests (windows, x86_64-pc-windows-msvc, windows-latest, serde)	4m 56s
tests (windows, x86_64-pc-windows-msvc, windows-latest, rwh_04,rwh_05,rwh_06)	7m 16s
tests (ubuntu, x86_64-unknown-linux-gnu, ubuntu-latest)	7m 47s
tests (ubuntu, x86_64-unknown-linux-gnu, ubuntu-latest, serde)	6m 44s
tests (ubuntu, x86_64-unknown-linux-gnu, ubuntu-latest, rwh_04,rwh_05,rwh_06)	4m 11s
tests (macos, x86_64-apple-darwin, macos-latest)	2m 13s
tests (macos, x86_64-apple-darwin, macos-latest, serde)	3m 59s
tests (macos, x86_64-apple-darwin, macos-latest, rwh_04,rwh_05,rwh_06)	2m 1s
tests (android, aarch64-linux-android, ubuntu-latest, apk --)	38s
tests (android, aarch64-linux-android, ubuntu-latest, apk --, serde)	39s
tests (android, aarch64-linux-android, ubuntu-latest, apk --, rwh_04,rwh_05,rwh_06)	50s
tests (ios, aarch64-apple-ios, macos-latest)	1m 14s
tests (ios, aarch64-apple-ios, macos-latest, serde)	3m 25s
tests (ios, aarch64-apple-ios, macos-latest, rwh_04,rwh_05,rwh_06)	1m 15s
	54m 26s

Provide feedback