Update workflows for build-resources v4

[kernelsam]

Summary

• Rename secret keys for build-resources v4 (SENZING_MEMBERS → MEMBERS, etc.)
• Replace .outputs.job-status with .result
• Bump pull-requests permission to write in lint-repo.yaml
• Add SLACK_CHANNEL secret to slack notification callers
• Bump all @v3/@v2 build-resources references to @v4
• Standardize dependabot config (assignees, cooldown, groups)
• Add kernelsam and cooldown to cspell dictionary

[github-actions]

Super-linter summary

Language	Validation result
CHECKOV	Pass ✅
GITHUB_ACTIONS	Pass ✅
GITHUB_ACTIONS_ZIZMOR	Pass ✅
GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSCPD	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅
YAML_PRETTIER	Pass ✅

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[github-actions]

Super-linter summary

Language	Validation result
CHECKOV	Pass ✅
GITHUB_ACTIONS	Pass ✅
GITHUB_ACTIONS_ZIZMOR	Pass ✅
GITLEAKS	Pass ✅
GIT_MERGE_CONFLICT_MARKERS	Pass ✅
JSCPD	Pass ✅
PRE_COMMIT	Pass ✅
SPELL_CODESPELL	Pass ✅
TRIVY	Pass ✅
YAML	Pass ✅
YAML_PRETTIER	Pass ✅

All files and directories linted successfully

For more information, see the GitHub Actions workflow run

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