supported versions workflow: fix parsing and modify gem names

[quinna-h]

What does this PR do?

• Update to only parse gemfile.lock files instead of also gemfile files
• change the aws contrib to use the aws-sdk gem
• change the http contrib to use net-http gem
• change typos in httpx and makara: nil means we do not support the integration, infinity means we use latest

Motivation:

Addition to #4210

Change log entry

Additional Notes:

How to test the change?

[github-actions]

👋 Hey @DataDog/ruby-guild, please fill "Change log entry" section in the pull request description.

If changes need to be present in CHANGELOG.md you can state it this way

**Change log entry**

Yes. A brief summary to be placed into the CHANGELOG.md

(possible answers Yes/Yep/Yeah)

Or you can opt out like that

**Change log entry**

None.

(possible answers No/Nope/None)

^{Visited at: 2025-01-15 22:37:10 UTC}

[datadog-datadog-prod-us1]

Datadog Report

Branch report: add-gems-to-integrations
Commit report: 40fc101
Test service: dd-trace-rb

✅ 0 Failed, 22182 Passed, 1476 Skipped, 5m 12.36s Total Time

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 97.72%. Comparing base (9e3a3e3) to head (e458643).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
lib/datadog/tracing/contrib/aws/integration.rb	0.00%	1 Missing ⚠️
lib/datadog/tracing/contrib/http/integration.rb	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4294   +/-   ##
=======================================
  Coverage   97.71%   97.72%           
=======================================
  Files        1356     1356           
  Lines       82489    82491    +2     
  Branches     4219     4219           
=======================================
+ Hits        80604    80612    +8     
+ Misses       1885     1879    -6     

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[pr-commenter]

Benchmarks

Benchmark execution time: 2025-01-15 23:01:37

Comparing candidate commit 40fc101 in PR branch add-gems-to-integrations with baseline commit 21106cd in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 31 metrics, 2 unstable metrics.