feat(service account): added provider-grafana service account

[blut]

Signed-off-by: Hannes Blut hannes.blut-extern@deutschebahn.com (external expert on behalf of DB Netz)

Description of your changes

Added resources for service account apis

Fixes #

I have:

• [ ] Read and followed Crossplane's contribution process.
• [ ] Run make reviewable test to ensure this PR is ready for review.

How has this code been tested

tested manually

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