Update lukaszraczylo/semver-generator action to v1.12.255 #4955

Job	Run time
Generate a semantic version number	10s
Checkout	9s
js-get-deps	18s
codeql	1m 20s
build-web-ui	18s
js-build-binaries	49s
js-units	19s
publish-web-ui	0s
policytests (psp, fixtures)	1m 50s
policytests (gatekeeper, fixtures)	2m 27s
release-binaries	0s
policytests (kyverno, fixtures)	2m 21s
policytests (kubewarden, fixtures)	23m 3s
policytests (pss, fixtures)	2m 46s
policytests (krail, fixtures)	46s
policytests (kubewarden, e2e)	23m 17s
policytests (gatekeeper, e2e)	2m 7s
policytests (kyverno, e2e)	2m 23s
	1h 4m 23s

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