fix: add "s3/" prefix to destination.service.resource for S3 spans

[trentm]

Closes: #3084
Refs: elastic/apm#738

[apmmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2023-01-17T18:00:28.121+0000

• Duration: 26 min 2 sec

Test stats 🧪

Test	Results
Failed	0
Passed	322162
Skipped	0
Total	322162

🤖 GitHub comments

Expand to view the GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• run module tests for <modules> : Run TAV tests for one or more modules, where <modules> can be either a comma separated list of modules (e.g. memcached,redis) or the string literal ALL to test all modules

• run benchmark tests : Run the benchmark test only.

• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)