Update CHANGELOG.md from release 26.7.0 (#784) #290

Job	Run time
Detect relevant changed files	5s
Build/Publish amd64 Image	8m 12s
Build/Publish arm64 Image	5m 5s
Run cargo-udeps	2m 4s
Publish/Sign 0.0.0-dev Index	37s
Package/Publish 0.0.0-dev Helm Chart	31s
Run OpenShift Preflight Check for 0.0.0-dev-arm64	34s
Run OpenShift Preflight Check for 0.0.0-dev-amd64	28s
Generate Provenance for 0.0.0-dev (oci.stackable.tech) / detect-env	6s
Generate Provenance for 0.0.0-dev (quay.io) / detect-env	3s
Generate Provenance for 0.0.0-dev (quay.io) / generator	32s
Generate Provenance for 0.0.0-dev (oci.stackable.tech) / generator	34s
Finished Build and Publish	3s
Generate Provenance for 0.0.0-dev (quay.io) / final	5s
Generate Provenance for 0.0.0-dev (oci.stackable.tech) / final	4s
Failure Notification	0s
	19m 3s

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