Bump prober to v0.5.3

[tstromberg]

Signed-off-by: Thomas Stromberg t+github@chainguard.dev

Description of the change

Bump prober to scaffold v0.5.3, primarily to address a memory leak: sigstore/scaffolding#496

Existing or Associated Issue(s)

sigstore/scaffolding#496

Additional Information

v0.5.3 release notes:

• Bump actions/setup-go from 3.3.1 to 3.4.0 by @dependabot in Bump actions/setup-go from 3.3.1 to 3.4.0 scaffolding#491
• Bump github/codeql-action from 2.1.31 to 2.1.35 by @dependabot in Bump github/codeql-action from 2.1.31 to 2.1.35 scaffolding#492
• Bump github.com/sigstore/timestamp-authority from 0.1.2 to 0.1.3 by @dependabot in Bump github.com/sigstore/timestamp-authority from 0.1.2 to 0.1.3 scaffolding#493
• Bump github.com/go-sql-driver/mysql from 1.6.0 to 1.7.0 by @dependabot in Bump github.com/go-sql-driver/mysql from 1.6.0 to 1.7.0 scaffolding#494
• ensure we don't leak resp.Body on fulcio prober by @bobcallaway in ensure we don't leak resp.Body on fulcio prober scaffolding#496

Checklist

• [ x Chart version bumped in Chart.yaml according to semver. Where applicable, update and bump the versions in any associated umbrella chart
• Variables are documented in the values.yaml and added to the README.md. The helm-docs utility can be used to generate the necessary content. Use helm-docs --dry-run to preview the content.
• JSON Schema generated.
• List tests pass for Chart using the Chart Testing tool and the ct lint command.

[vaikas]

Could you also run:

helm-docs -g charts/sigstore-prober

To get the right values to READMe.md. Alternatively, could you update the values here manually:
https://github.com/sigstore/helm-charts/blob/main/charts/sigstore-prober/README.md

In particular the version, and spec.image.

[vaikas]

Thanks!