feat(bitrise): add bitrise ci plugin

Plugin to show bitrise.io builds and download
build artifacts.

Co-authored-by: Adrian Barwicki <adrian@adrianbarwicki.com>
Co-authored-by: Kai Szybiak <kaiszybiak@gmail.com>
Co-authored-by: Dominik Schwank <dominik.schwank@sda.se>
Signed-off-by: Peter Grauvogel <peter.grauvogel@sda-se.com>

microsite/data/plugins/bitrise.yaml

@@ -0,0 +1,9 @@
+---
+title: Bitrise
+author: SDA SE
+authorUrl: https://sda.se/
+category: CI/CD
+description: View Bitrise builds and download the build artifacts within Backstage.
+documentation: https://github.com/backstage/backstage/blob/master/plugins/bitrise/README.md
+iconUrl: https://avatars.githubusercontent.com/u/7174390?s=400&v=4
+npmPackageName: '@backstage/plugin-bitrise'