Bump tonic to v0.14 and opentelemetry to v0.31 #512

Job	Run time
minimal-versions	2m 51s
Doc checks	1m 36s
Clippy checks	1m 42s
Test unstable	2m 22s
fmt	21s
Run example (dry run)	2m 0s
Cargo deny checks	38s
Check feature combinations (ubuntu-latest)	3m 24s
Check feature combinations (macos-latest)	3m 18s
Test (x86_64-linux)	2m 52s
Test (aarch64-ios)	1m 50s
Test (arm-android)	1m 12s
Test (x86_64-windows)	3m 27s
Test (aarch64-linux)	2m 56s
Test (x86_64-macos)	3m 30s
Test (arm64-android)	1m 9s
Check unstable	1m 49s
Pull Request Status Checks	3s
	37m 0s

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