Refactor get_config method to handle first run flag #3008

Job	Run time
codeql / code-security (python)	2m 48s
codeql / code-security (javascript)	2m 35s
build-packages (fedora) / build	6m 3s
build-packages (rhel) / build	6m 51s
build-packages (debian) / build	5m 44s
build-containers (autoconf) / build	44s
build-containers (bunkerweb) / build	4m 24s
build-packages (ubuntu) / build	5m 57s
build-packages (ubuntu-jammy) / build	6m 21s
build-containers (scheduler) / build	2m 8s
build-containers (ui) / build	1m 41s
build-packages (rhel9) / build	6m 54s
push-dev	35s
push-packages (debian, amd64) / push	31s
push-packages (el, amd64) / push	35s
push-packages (el9, amd64) / push	49s
push-packages (fedora, amd64) / push	34s
push-packages (ubuntu, amd64) / push	36s
push-packages (ubuntu-jammy, amd64) / push	33s
	56m 23s

Provide feedback