chore(deps): update peter-evans/create-pull-request action to v7 #202

Job	Run time
Run shellcheck	9s
Test setup-postgresql (macos-latest, 14)	14s
Test setup-postgresql (macos-latest, 12)	13s
Test setup-postgresql (macos-latest, 15)	15s
Test setup-postgresql (macos-latest, 16)	14s
Test setup-postgresql (ubuntu-latest, 14)	11s
Test setup-postgresql (ubuntu-latest, 12)	20s
Test setup-postgresql (ubuntu-latest, 15)	17s
Test setup-postgresql (ubuntu-latest, 16)	22s
Test setup-postgresql (windows-latest, 16)	6m 48s
Test setup-postgresql (windows-latest, 14)	5m 14s
Test setup-postgresql (windows-latest, 15)	6m 14s
Test setup-postgresql (windows-latest, 12)	7m 46s
	28m 17s

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