[skip ci] Add release notes for version 1.1.0

.chglog/1.1.0.md

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+## ⭐ Enhancements
+
+- Configuration to Specify XML Configuration Service Implementation When Multiple Are on the Classpath [#694](https://github.com/focus-shift/jollyday/issues/694)
+
+## 🐞 Bugs
+
+- Easter monday in Switzerland's Canton of Valais instead of Vaud [#698](https://github.com/focus-shift/jollyday/issues/698)
+- Switzerland - All Saints, not a public holiday in Graubünden [#691](https://github.com/focus-shift/jollyday/issues/691)
+- Warning module not found [#445](https://github.com/focus-shift/jollyday/issues/445)
+
+## 🔨 Dependency upgrades
+
+- build(deps): bump net.jqwik:jqwik from 1.9.1 to 1.9.2 [#689](https://github.com/focus-shift/jollyday/pull/689)
+- build(deps): bump org.apache.maven.plugins:maven-javadoc-plugin from 3.11.1 to 3.11.2 [#690](https://github.com/focus-shift/jollyday/pull/690)
+- build(deps): bump org.junit.jupiter:junit-jupiter from 5.11.3 to 5.11.4 [#697](https://github.com/focus-shift/jollyday/pull/697)
+
+## ❤️ Contributors
+
+We'd like to thank all the contributors who worked on this release!
+
+- [@derTobsch](https://github.com/derTobsch)