Add monitored entity reconciler

[waodim]

Description

With this a new reconciler is added that deals with the monitored entity from the cluster. It will be stored in the dynakube status from now on, such that if we need to store the value we can guarantee that it is stored somewhere.

Because of this I removed the API call which was inside the settings enrichment reconciler, as it is unneeded as the main purpose was to get the entityID. From now on the ID is simply taken from the dynakube status.

JIRA-ticket: https://dt-rnd.atlassian.net/browse/K8S-9857

How can this be tested?

Deploy the operator and a dynakube with metadata enrichment enabled. Check the logs, also check the dynakube status.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 60.00000% with 24 lines in your changes missing coverage. Please review.

Project coverage is 57.71%. Comparing base (5f87f92) to head (d3fedb2).
Report is 1 commits behind head on main.

Files	Patch %	Lines
test/mocks/pkg/clients/dynatrace/client.go	15.38%	8 Missing and 3 partials ⚠️
...g/controllers/dynakube/apimonitoring/reconciler.go	60.00%	5 Missing and 1 partial ⚠️
...ntrollers/dynakube/monitoredentities/reconciler.go	77.27%	3 Missing and 2 partials ⚠️
pkg/controllers/dynakube/controller.go	50.00%	1 Missing and 1 partial ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3447      +/-   ##
==========================================
- Coverage   57.77%   57.71%   -0.06%     
==========================================
  Files         371      372       +1     
  Lines       20162    20181      +19     
==========================================
- Hits        11649    11648       -1     
- Misses       7277     7290      +13     
- Partials     1236     1243       +7     

Flag	Coverage Δ
unittests	57.71% <60.00%> (-0.06%)	⬇️

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[0sewa0]

1 final nitpick, otherwise looks good, tested it and works as expected (noticed the nitpick during the tests)

[0sewa0]

1 final nitpick, otherwise looks good, tested it and works as expected (noticed the nitpick during the tests)

CRD needs to be regenerated

[0sewa0]

CRD needs to be regenerated:

> git status        
On branch feature/add-monitored-entity-reconciler
Your branch is up to date with 'origin/feature/add-monitored-entity-reconciler'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   config/crd/bases/dynatrace.com_dynakubes.yaml
        modified:   config/helm/chart/default/templates/Common/crd/dynatrace-operator-crd.yaml

no changes added to commit (use "git add" and/or "git commit -a")

[luhi-DT]

LGTM