docs: add release notes for v5.6.0

Author: github-actions[bot]

release_notes/v5.6.0.md

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+# [5.6.0](https://github.com/NHSDigital/eps-common-workflows/compare/v5.5.3...v5.6.0) (2026-03-05)
+
+
+### Fix
+
+* [AEA-5986] - Fix publish fame library (#77) ([aac5b79](https://github.com/NHSDigital/eps-common-workflows/commit/aac5b797ee198b8bd260d618cf7cbdf723860033))
+
+### New
+
+* [AEA-5986] - Publish to PyPI (#76) ([de21183](https://github.com/NHSDigital/eps-common-workflows/commit/de2118390681f2e1701dddcaa463dcea743a6e92))
+
+### Upgrade
+
+* [dependabot] - bump aquasecurity/trivy-action from 0.34.0 to 0.34.1 (#75) ([d522293](https://github.com/NHSDigital/eps-common-workflows/commit/d5222938de3b91e0fe94db73d61eb9e0f781b1ed))
+
+## Info
+[Release workflow run](https://github.com/NHSDigital/eps-common-workflows/actions/runs/22714064973) - Workflow ID: 22714064973
+
+It was initialized by [originalphil](https://github.com/originalphil)
+
+