Update README.rst

See merge request omegacen/ci-templates!63

Use single quotes to enable variable interpolation

See merge request omegacen/ci-templates!62

Add template to upload conda packages to Euclid Nexus

See merge request omegacen/ci-templates!61

Bump pylint-sonarjson

See merge request omegacen/ci-templates!60

This will fix an issue with certain pylint issues when imported in
SonarQube. See https://community.sonarsource.com/t/illegalargumentexception-during-sonarscanner-execution-for-multiline-python-imports/70315.

Add release-mr template

See merge request omegacen/ci-templates!59

With https://github.com/python-jsonschema/check-jsonschema/issues/112
check-jsonschema now works with !reference tags.

Add latex-builder image

See merge request omegacen/ci-templates!58

https://github.com/tectonic-typesetting/tectonic/issues/53 has been fixed

Add sonar-scanner-cli Docker image

See merge request omegacen/ci-templates!57

Add conda-builder image and use mambabuild

See merge request omegacen/ci-templates!56

Otherwise conda cannot be found by GitLab CI.

The --cleanup flag is necessary to build multiple images in one
container. But that flag removes everything that's not in
the vanilla kaniko image.

Use the first parent commit for changed files as fallback

See merge request omegacen/ci-templates!55