[8.x] [Data Usage] Excludes ca setting from TLS config for AutoOps AP…

…I request (elastic#200073) (elastic#200094)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Data Usage] Excludes ca setting from TLS config for AutoOps API
request (elastic#200073)](elastic#200073)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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Usage] Excludes ca setting from TLS config for AutoOps API request
(elastic#200073)\n\nThis PR is a result of the discussion we had about
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BACKPORT-->

Co-authored-by: Yuliia Naumenko <[email protected]>

x-pack/plugins/data_usage/server/services/autoops_api.ts

@@ -63,7 +63,6 @@ export class AutoOpsAPIService {
         rejectUnauthorized: tlsConfig.rejectUnauthorized,
         cert: tlsConfig.certificate,
         key: tlsConfig.key,
-        ca: tlsConfig.certificateAuthorities,
       }),
     };