Use ParseInt instead of Atoi when converting process id string to an int

[dhurley]

Proposed changes

Use ParseInt instead of Atoi when converting process id string to an int

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING document
• I have run make install-tools and have attached any dependency changes to this pull request
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• If applicable, I have updated any relevant documentation (README.md)
• If applicable, I have tested my cross-platform changes on Ubuntu 22, Redhat 8, SUSE 15 and FreeBSD 13

[netlify]

✅ Deploy Preview for agent-public-docs canceled.

Name	Link
🔨 Latest commit	99515c4
🔍 Latest deploy log	https://app.netlify.com/sites/agent-public-docs/deploys/64a837779b3e880007560745

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: -0.16 ⚠️

Comparison is base (02f86ca) 67.48% compared to head (99515c4) 67.32%.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #384      +/-   ##
==========================================
- Coverage   67.48%   67.32%   -0.16%     
==========================================
  Files         113      113              
  Lines       12676    12676              
==========================================
- Hits         8554     8534      -20     
- Misses       3554     3576      +22     
+ Partials      568      566       -2     

Impacted Files	Coverage Δ
.../agent/v2/src/core/metrics/sources/nginx_worker.go	30.95% <0.00%> (ø)

... and 4 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.