fix: fp when editing template-parts in gutenberg editor

[EsadCetiner]

Fixes false positives with the new gutenberg when editing template parts of a website, for instance the header or footer.

I couldn't figure out why the linter is failing, I can't find any trailing whitespace, missing/extra line breaks, and the error message is ambiguous. nvm I can see the error now after I've opened the PR.

[azurit]

Can you 'fix' tests?

• we use "OWASP CRS test agent" as User-Agent for CRS (so we should do it also for plugins)
• URI should start with endpoint /method (i.e. /post/...)
• explicitly set protocol version using version: "HTTP/1.1"

Thanks.

[EsadCetiner]

@azurit

Thanks, I missed that, cleaned up the tests a bit too.

[azurit]

@EsadCetiner Why have you decided to remove END-WORDPRESS-ADMIN hack?

[EsadCetiner]

@azurit It caused a false positive, 9507600 is meant to apply unconditionally but it only apples for wp-admin because of the skip rule.

[azurit]

Then i suggest to move 9507600 out of that block (and renumber it if you feel it's needed).