Release version 0.7.0

Diff from 0.6.1

https://gitlab.com/gitlab-org/charts/auto-deploy-app/-/compare/v0.6.1...feature%2Fbump-chart-to-0-7-0

2d79c5f Merge branch 'feat-adopt-to-use-with-skaffold' into 'master'
62e1c77 Fall back to image.repository when image.tag is empty
a80fb3a Merge branch 'add-short-guide-to-tests' into 'master'
f21c6a6 Add tiny guide for the tests
d659158 Merge branch 'postgresql-link' into 'master'
eaa7859 Add link to specific SHA for 0.7.1 postgresql
f021738 Merge branch 'enable-sast-ci-job' into 'master'
fc9c8e3 Enable SAST CI job