Reconstruct necessary action workflows & Dependabot rules #4

Job	Run time
format	3m 10s
pr_build / win-x64 (Debug)	8m 59s
pr_build / macOS Universal (Debug)	6m 22s
pr_build / linux-x64 (Debug)	5m 13s
pr_build / linux-arm64 (Debug)	2m 56s
pr_build / macOS Universal (Release)	5m 20s
pr_build / osx-x64 (Debug)	7m 40s
pr_build / win-x64 (Release)	8m 11s
pr_build / linux-x64 (Release)	4m 28s
pr_build / linux-arm64 (Release)	2m 58s
pr_build / osx-x64 (Release)	5m 32s
	1h 0m 49s

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