Bump MSRV for local build #64

Job	Run time
build-ubuntu-latest-stable	4m 58s
build-remote-ubuntu-latest-stable	5m 4s
docker	3m 20s
build-ubuntu-latest-beta	5m 6s
build-remote-ubuntu-latest-beta	4m 36s
build-ubuntu-latest-nightly	5m 41s
build-remote-ubuntu-latest-nightly	4m 21s
build-remote-ubuntu-latest-1.70.0	4m 53s
build-ubuntu-latest-1.65.0	8m 5s
build-remote-macos-latest-stable	4m 15s
build-macos-latest-stable	3m 16s
build-macos-latest-beta	4m 58s
build-remote-macos-latest-beta	2m 31s
build-macos-latest-nightly	5m 18s
build-remote-macos-latest-nightly	2m 59s
build-macos-latest-1.65.0	6m 59s
build-remote-macos-latest-1.70.0	4m 48s
build-windows-latest-stable	6m 58s
build-windows-latest-beta	9m 46s
build-remote-windows-latest-stable	6m 36s
build-windows-latest-nightly	7m 59s
build-remote-windows-latest-beta	6m 58s
build-windows-latest-1.65.0	11m 2s
build-remote-windows-latest-nightly	6m 5s
build-remote-windows-latest-1.70.0	6m 25s
	2h 22m 57s

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