Remove usage of deprecated apt-key in CI #374

Job	Run time
test-rust-wasi	6m 4s
test-webgpu	3m 34s
actionlint	6s
benchmark (new)	1m 27s
build-and-deploy-grpc-server	3m 0s
benchmark (old)	1m 13s
build-and-deploy-http-server	2m 49s
check-js	11s
coverage	6m 51s
deploy-cloudflare-worker	3m 33s
fuzz-afl	2m 55s
fuzz-honggfuzz	1m 29s
fuzz-libfuzzer	2m 21s
gist-mapping	30s
test-c-and-cxx-bindings (ubuntu-latest)	1m 4s
test-python (3.9)	42s
test-c-and-cxx-bindings (macos-latest)	51s
test-rust (stable)	5m 16s
test-python (3.x)	36s
test-wasm (18.x)	1m 12s
test-rust (nightly)	7m 24s
test-wasm (latest)	1m 15s
compare-benchmarks	5s
deploy-site	3m 27s
	57m 55s

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