feat: backstage bump to 1.27.7

[fridajac]

Describe your changes

Changes:

• Backstage version has been upgraded to 1.27.7
• Removed the TechRadar plugin since it was not used and caused problems with the new version.

Checklist before requesting a review

• [x] I have performed a self-review of my own code
• [x] I have verified that the code builds perfectly fine on my local system
• [x] I have verified that my code follows the style already available in the repository

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 50c6e03d94ea8376d3d5f91c31ba1abd2ffa9413

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 11 packages

| Name | Type | | --------------------------------------------- | ----- | | @axis-backstage/plugin-analytics-module-umami | Minor | | @axis-backstage/plugin-jira-dashboard-backend | Minor | | @axis-backstage/plugin-jira-dashboard-common | Minor | | @axis-backstage/plugin-statuspage-backend | Minor | | @axis-backstage/plugin-statuspage-common | Minor | | @axis-backstage/plugin-jira-dashboard | Minor | | @axis-backstage/plugin-readme-backend | Minor | | @axis-backstage/plugin-statuspage | Minor | | backend | Minor | | @axis-backstage/plugin-readme | Minor | | app | Minor |

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