ci(update_submodule.yml) Bump peter-evans/create-pull-request to v6 #751

Job	Run time
test (ubuntu-latest, 26.3, false)	28s
test (ubuntu-latest, 27.2, false)	32s
test (ubuntu-latest, 28.2, false)	35s
test (ubuntu-latest, 29.2, false)	1m 6s
test (macos-latest, 26.3, false)	2m 28s
test (macos-latest, 27.2, false)	1m 57s
test (macos-latest, 28.2, false)	2m 34s
test (macos-latest, 29.2, false)	2m 11s
test (windows-latest, 26.3, false)	2m 24s
test (windows-latest, 27.2, false)	1m 24s
test (windows-latest, 28.2, false)	58s
test (windows-latest, 29.2, false)	1m 25s
test (ubuntu-latest, snapshot, true)	24s
test (macos-latest, snapshot, true)	1m 43s
test (windows-latest, snapshot, true)	1m 35s
	21m 44s

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