2026.3.0

What's Changed

• Add 2026.2 to paas-skeleton sync matrix, fix CLA link in LICENSE.md by @mcop1 in #280
• Update maintenance branch in CONTRIBUTING.md to 2026.2 (#187) by @pimcore-deployments in #281
• Rename new-* workflow files to their final names by @berfinyuksel in #282
• Add PR Guardrails trigger workflow by @berfinyuksel in #283
• Restrict PR Guardrails to the three tokens (drop secrets: inherit) by @berfinyuksel in #284
• Prepare/merge 2026.2 into 2026.x by @berfinyuksel in #285
• 🔄 synced file(s) with pimcore/workflows-collection-public by @pimcore-deployments in #286
• Add PR Policy thin caller for reusable workflow by @berfinyuksel in #288
• [CI] PR Policy thin caller for reusable workflow (2025.4) by @berfinyuksel in #289
• [2026.3] Prepare 2026.3: pin skeleton and enterprise variant to the 2026.3 line by @kingjia90 in #291
• [2026.3] Pin opensearch-client and elasticsearch-client to the 2026.3 line by @kingjia90 in #293
• [2026.3][release] Restore ^2026.3.0 constraints once the line is tagged by @kingjia90 in #292

Full Changelog: v2026.2.0...v2026.3.0