build(deps): update swatinem/rust-cache action to v2.7.7 #392

Job	Run time
Rustfmt [Formatter]	6s
Test [Build only] (stable, x86_64-unknown-freebsd)	55s
Test (stable, i686-unknown-linux-gnu)	56s
Test [Build only] (stable, x86_64-unknown-netbsd)	1m 11s
Test (stable, x86_64-unknown-linux-gnu)	53s
Test [Build only] (stable, aarch64-unknown-linux-gnu)	55s
Test (stable, x86_64-unknown-linux-musl)	59s
Test [Build only] (stable, aarch64-unknown-linux-musl)	58s
Test (stable, i686-pc-windows-msvc)	2m 46s
Test (stable, x86_64-pc-windows-msvc)	1m 50s
Test [Build only] (stable, aarch64-pc-windows-msvc)	1m 46s
Test (stable, x86_64-apple-darwin)	43s
Test [Build only] (stable, aarch64-apple-darwin)	43s
Test (1.69.0, i686-unknown-linux-gnu)	1m 4s
Test [Build only] (1.69.0, x86_64-unknown-freebsd)	57s
Test (1.69.0, x86_64-unknown-linux-gnu)	1m 2s
Test [Build only] (1.69.0, x86_64-unknown-netbsd)	1m 6s
Test (1.69.0, x86_64-unknown-linux-musl)	1m 3s
Test [Build only] (1.69.0, aarch64-unknown-linux-gnu)	58s
Test (1.69.0, i686-pc-windows-msvc)	1m 9s
Test [Build only] (1.69.0, aarch64-unknown-linux-musl)	59s
Test (1.69.0, x86_64-pc-windows-msvc)	1m 26s
Test [Build only] (1.69.0, aarch64-pc-windows-msvc)	1m 13s
Test (1.69.0, x86_64-apple-darwin)	45s
Test [Build only] (1.69.0, aarch64-apple-darwin)	46s
	27m 9s

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