Merge pull request #62 from jonasbb/dependabot/cargo/petgraph-0.7.1 #276

Job	Run time
clippy_check (ubuntu-latest, stable)	32s
Build and Test (ubuntu-latest, stable)	1m 3s
clippy_check (ubuntu-latest, nightly)	22s
Rustfmt (stable)	15s
Build and Test (ubuntu-latest, beta)	31s
clippy_check (windows-latest, stable)	1m 9s
clippy_check (windows-latest, nightly)	59s
Build and Test (ubuntu-latest, nightly)	23s
Build and Test (windows-latest, stable)	1m 0s
Build and Test (windows-latest, beta)	1m 4s
Build and Test (windows-latest, nightly)	41s
Tests result	1s
	8m 0s

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