feat: CNPG recovery options

[merll]

This PR introduces new values not part of the platform API, but needed for recovering platform databases:

• The recovery and externalClusters sections in the clusterSpec.bootstrap can be provisioned. Necessary since there are no rawValues for platform databases.
• The location of new backups can be changed, so that the same bucket and credentials can be reused, adding different paths to the CNPG backup location (pathSuffix).
• The linode-creds secret must be present before configuring a backup or recovery. For Harbor, this is configured sooner during the initial installation.
• An issue with the retention of Gitea backups was discovered and fixed.
• More defaults are added, fixing templating issues if e.g. schedule is not set in input values.
• Rclone was updated to the latest release v1.69.0. If the checksum cannot be verified, there is an attempt to reinstall Rclone instead of failing.
• Some older values used when migrating from the chart databases were removed.

Checklist

• Architecture Design Records have been added as adr/*.md and appended to list in adr/_index.md, if applicable.
• The values-schema.yaml file and test/** fixtures have been updated to reflect code changes, if applicable.
• The OpenApi Schema from redkubes/otomi-api project is compatible with definitions from values-schema.yaml file, if applicable.
• Helm releases are meeting otomi's baseline security policies, if applicable.
• Helm chart and helmfile changes are tested against upgrade scenario, if applicable.

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🔴	Statements	47.77% (+0.1% 🔼)	975/2041
🔴	Branches	31.21% (+0.5% 🔼)	186/596
🔴	Functions	37.19% (+0.35% 🔼)	106/285
🔴	Lines	46.96% (+0.11% 🔼)	858/1827

Test suite run success

80 tests passing in 9 suites.

Report generated by 🧪jest coverage report action from 2e9a5ef

[j-zimnowoda]

Approving, please add test fixtures for one of the db that covers rendering of the recovery and externalClusters properties