Fix filtering on plugin_id for normalizers

[jpbruinsslot]

Changes

Updated filtering on the queryparam plugin_id for normalizers. The correct "and" clause wasn't present. And this has been added now.

Issue link

No issue link

QA notes

1. On main, go through the onboarding, create the organisation dev and create a scan for a domain
2. On the command line issue the following:

$ curl 'http://localhost:8004/tasks?scheduler_id=normalizer-dev&task_type=normalizer&plugin_id=kat_dnssec_normalize'

3. This should relay the following message:

{
  "detail": "error occurred while accessing the database [exception: An error occurred: 'str' object has no attribute 'field']"
}

4. Checkout this branch and follow step 1 and 2 again

5. No error should be relayed

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Code Checklist

• All the commits in this PR are properly PGP-signed and verified.
• This PR only contains functionality relevant to the issue.
• I have written unit tests for the changes or fixes I made.
• I have checked the documentation and made changes where necessary.
• I have performed a self-review of my code and refactored it to the best of my abilities.

• Tickets have been created for newly discovered issues.
• For any non-trivial functionality, I have added integration and/or end-to-end tests.
• I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
• I have included comments in the code to elaborate on what is not self-evident from the code itself, including references to issues and discussions online, or implicit behavior of an interface.

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Checklist for code reviewers:

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Checklist for QA:

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