Bump spire Helm Chart version from 0.8.0 to 0.8.1

[marcofranssen]

Please review the below changelog to ensure this matches up with the semantic version being applied.

Note: Maintainers ensure to run following after merging this PR to trigger the release workflow:

git checkout main
git pull
git checkout release
git pull
git merge main
git push

Changes in this release

• d83d6a8 Emergency patch for Tornjak Frontend (Emergency patch for Tornjak Frontend #319)
• ed172e4 Bump k8s versions to latest patches (Bump k8s versions to latest patches #317)
• 0562946 Removed pull_request edited event from ci workflow (Removed pull_request edited event from ci workflow #318)
• 3cb55df Allow for having no registry specified (Allow for having no registry specified #312)
• 1247b68 Parametrize probes (Parametrize probes #310)

[kfox1111]

LGTM