Switches most jobs to a self-hosted environment + enhances timeouts #24

Job	Run time
build-and-push-base	7m 37s
build-and-push-latest-image (2024)	16h 17m 18s
build-and-push-image (2017)	5h 30m 20s
build-and-push-2016-image (2016)	1h 19m 8s
build-and-push-image (2018)	6h 32m 25s
build-and-push-image-2023 (2023)	11h 14m 12s
build-and-push-image (2019)	5h 34m 45s
build-and-push-image (2020)	6h 38m 40s
build-and-push-image (2021)	8h 22m 41s
build-and-push-image (2022)	7h 13m 42s
build-and-push-image-variants (2022-gradle)	29m 3s
build-and-push-image-variants (2023-gradle)	5m 48s
build-and-push-image-variants (2023-python)	18m 55s
build-and-push-image-variants (2024-gradle)	34m 1s
build-and-push-image-variants (2024-python)	11m 51s
	2d 22h 30m 26s

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