Initial Thoth GitHub Action release to the GitHub Marketplace

What's Changed

• Fix missing shell property by @mayaCostantini in #15
• Remove duplicate steps and add github action path environment variable by @mayaCostantini in #16
• Fix constructing search ui url and remove setup-python from usage section by @mayaCostantini in #17
• Fix output name and provide PR number for comment action by @mayaCostantini in #18
• Remove advise result from outputs by @mayaCostantini in #20
• Comment PR with link to Search UI by @mayaCostantini in #21
• Automatic update of dependencies by Kebechet for the rhel8 environment by @khebhut in #24
• Update README by @mayaCostantini in #26
• Link to Search UI results and CVE error message by @mayaCostantini in #22
• Make pipenv default and inputs required by @mayaCostantini in #28
• Add setup.cfg support by @mayaCostantini in #29
• Fix advise status code by @mayaCostantini in #30
• Support for overlays by @mayaCostantini in #32
• Fix empty optional input parameter by @mayaCostantini in #33
• Verify different actions/checkout versions include hidden files by @mayaCostantini in #34
• Add overlay path to get last analysis id by @mayaCostantini in #35
• Add init file for versioning by @mayaCostantini in #39

Full Changelog: v0.0.0...v0.1.0