ci: update version

[fluentdo-ci]

Update version

• Created by https://github.com/telemetryforge/agent/actions/runs/26397856072
• Auto-generated by create-pull-request: https://github.com/peter-evans/create-pull-request

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Summary by cubic

Bump Telemetry Forge Agent and Fluent Bit to 26.6.1 across build and test tooling. Dockerfiles, CMake, and test scripts now build and run against the new release.

^{Written for commit 66e2604. Summary will update on new commits. Review in cubic}

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[cubic-dev-ai]

No issues found across 6 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[coveralls]

Coverage Report for CI Build 26397871261

Coverage increased (+0.001%) to 58.244%

Details

• Coverage increased (+0.001%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 1 coverage regression across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

1 previously-covered line in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
plugins/out_cloudwatch_logs/cloudwatch_api.c	1	39.62%

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Coverage Stats

Relevant Lines:	160303
Covered Lines:	94456
Line Coverage:	58.92%
Relevant Branches:	35307
Covered Branches:	19475
Branch Coverage:	55.16%
Branches in Coverage %:	Yes
Coverage Strength:	5846.82 hits per line

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💛 - Coveralls