Releasing with semantic versioning

[pbochynski]

Description
Kyma Dashboard and busola should be released regularly with semantic versioning.

Acceptance criteria:

• Busola and Dashboard versions are available as Github Releases
• OCI imaged of Kyma Dashboard are available as release artifacts
• kubernetes manifests to deploy Kyma Dashboard are available as release artifacts
• Installation procedure should be updated with the information how to install and configure Busola in Kyma Control Plane (focus on configuration and dependencies like IAS)

[dbadura]

Execution plan:

• Create release workflow feat: Create release workflow skeleton #3478
• Create script to create release feat: Create release process  #3485
• Adjust and generate k8s yamls from kustomize feat: Create release process  #3485
• Add tutorial how to expose busole via Ingress/Istio
• Create script to upload needed assets feat: Create release process  #3485
• Build images with proper tags feat: Create release process  #3485
• Create script to create change log feat: Create release process  #3485
• Bump values in kustomize