fix[ci]: fix changelog script failing when tag doesn't exist yet and … #602

Job	Run time
Setup Deployment	3s
Build Event Processor Microservice	5m 59s
Build UTMStack Collector	1m 22s
Build Agent Binaries	4m 32s
Build User-Auditor Microservice / Build & Push Java 11 Image	2m 50s
Build Backend Microservice / Build & Push Java 17 Image	3m 14s
Build Web-PDF Microservice / Build & Push Java 11 Image	2m 37s
Build Frontend Microservice / build	4m 22s
Promote to Community	0s
Sign macOS Agent Binaries / Sign macos binaries	1m 1s
Sign Windows Agent Binaries / Sign windows binaries	47s
Build Agent Manager Microservice	2m 42s
All Builds Complete	4s
Deploy Installer (Dev) / Deploy V11 to Dev Runner	7s
Publish New Version to Customer Manager	17s
Deploy Installer (Dev) / Deploy V10 to Dev Runner	-1s
Deploy Installer (Dev) / Build V11 Installer for Release	-1s
Deploy Installer (Dev) / Deploy V10 to RC Runner	-1s
Deploy Installer (Dev) / Upload V10 Installer to Prerelease	-1s
Build & Upload Installer	-1s
Generate Changelog	-1s
Schedule release to our instances	3s
	29m 54s

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