docs: add release notes for v1.1.4

Author: github-actions[bot]

release_notes/v1.1.4.md

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+## [1.1.4](https://github.com/NHSDigital/eps-devcontainers/compare/v1.1.3...v1.1.4) (2026-03-17)
+
+
+### Chore
+
+* [AEA-0000] - add regression test project (#52) ([f266f81](https://github.com/NHSDigital/eps-devcontainers/commit/f266f816b27e6ffd56deb14b3a99ae785f5d3fb5))
+
+### Upgrade
+
+* [dependabot] - bump NHSDigital/eps-common-workflows/.github/workflows/dependabot-auto-approve-and-merge.yml from 5.6.4 to 5.6.6 (#56) ([d440054](https://github.com/NHSDigital/eps-devcontainers/commit/d440054773aef34d9e6f145c78b20035e1f719f4))
+* [dependabot] - bump NHSDigital/eps-common-workflows/.github/workflows/pr_title_check.yml from 5.6.4 to 5.6.6 (#55) ([57ea9fa](https://github.com/NHSDigital/eps-devcontainers/commit/57ea9fa1a2ce28c179c19a05ad51c9cb9da200f1))
+* [dependabot] - bump NHSDigital/eps-common-workflows/.github/workflows/quality-checks.yml from 5.6.4 to 5.6.6 (#54) ([770467a](https://github.com/NHSDigital/eps-devcontainers/commit/770467a8139f5afbdbbabaf4b11c4f836d41d313))
+* [dependabot] - bump NHSDigital/eps-common-workflows/.github/workflows/tag-release.yml from 5.6.4 to 5.6.6 (#53) ([c7cc284](https://github.com/NHSDigital/eps-devcontainers/commit/c7cc2841fb52302a4e87d8e5d50f57d34720f6bd))
+
+## Info
+[Release workflow run](https://github.com/NHSDigital/eps-devcontainers/actions/runs/23179735689) - Workflow ID: 23179735689
+
+It was initialized by [anthony-nhs](https://github.com/anthony-nhs)
+
+