Update CHANGELOG.md from release 26.3.0 (#744) #109

Job	Run time
Detect relevant changed files	6s
Build/Publish arm64 Image	5m 34s
Build/Publish amd64 Image	7m 0s
Run cargo-udeps	2m 2s
Package/Publish 0.0.0-dev Helm Chart	28s
Publish/Sign 0.0.0-dev Index	25s
Run OpenShift Preflight Check for 0.0.0-dev-amd64	16s
Run OpenShift Preflight Check for 0.0.0-dev-arm64	17s
Failure Notification	0s
Finished Build and Publish	3s
	16m 11s

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