Infra: Remove GitHub Actions from Dependabot configuration (#3187) #8062

Job	Run time
cibw-dev-env-smoke-test	32s
integration-test-gcs	6m 59s
integration-test-s3	7m 10s
lint-and-unit-test (3.13)	2m 52s
integration-test	16m 16s
lint-and-unit-test (3.11)	2m 46s
integration-test-adls	7m 9s
lint-and-unit-test (3.10)	2m 57s
lint-and-unit-test (3.12)	8m 25s
integration-coverage-report	31s
	55m 37s

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