example: Fix missing common resources for (compact|store)-shards/receive-hashrings

[maxbrunet]

• [ ] I added CHANGELOG entry for this change.
• [x] Change is not relevant to the end user.

Changes

~Hide hashrings and shards fields in thanos-receive-hashrings and store-shards. This allows to loop through them like the others instead of hand-picking resources and risking missing them (like the service accounts) or having a condition in the loop (e.g. if name != 'shards').~ Loop through compact-shards, receive-hashrings and store-shards common resources and conditionally skip non-resource fields.

Verification

Generated manifests are still the same and service accounts are now here

[maxbrunet]

On an afterthought, hiding keys could potentially annoy some people like Tanka users which extracts Kubernetes resources from any level as long as they are not hidden, so I am just going to fix the example by looping and filtering out these keys.