chore(ci): bump CI dependencies

[cjimti]

Summary

Combines 5 dependabot PRs (#66, #67, #68, #69, #70) into a single update.

• actions/setup-go v6.3.0 -> v6.4.0
• codecov/codecov-action v5.5.3 -> v6.0.0
• actions/configure-pages v5.0.0 -> v6.0.0
• actions/deploy-pages v4.0.5 -> v5.0.0
• github/codeql-action v4.34.1 -> v4.35.1

Test plan

• CI workflows pass on this PR
• Close superseded PRs chore(ci): bump actions/setup-go from 6.3.0 to 6.4.0 #66, chore(ci): bump github/codeql-action from 4.34.1 to 4.35.1 #67, chore(ci): bump actions/deploy-pages from 4.0.5 to 5.0.0 #68, chore(ci): bump actions/configure-pages from 5.0.0 to 6.0.0 #69, chore(ci): bump codecov/codecov-action from 5.5.3 to 6.0.0 #70