[CI/CD] CHANGELOG.md file updated with commits between the current and previous tag.

CHANGELOG.md

+### 16.0.0 Update to Angular 16 and update local issuer to keycloak.
+* c8331d2 -- [CI/CD] Update packages.json version based on GitLab tag.
+*   0450a63 -- Merge branch '6-update-to-angular-16' into 'master'
+|\  
+| * cac740e -- Update to keycloak auth provider, refactor minor setting
+| * 3f15452 -- Update to Angular 16
+|/  
+* 75de35a -- [CI/CD] CHANGELOG.md file updated with commits between the current and previous tag.
+* 9816ff1 -- [CI/CD] Update packages.json version based on GitLab tag.
+* 2e4fa52 -- Update to Angular 15
+* a358225 -- Update lint rules and mock service
+* 0f78cbf -- Prettify the code
+* dcbae84 -- Fix chart display delay
+* 110248e -- Add new mocking service
+* 4986b5a -- Merge branch '4-fix-axes-tooltip' into 'master'
+* e34126b -- Resolve "Fix axes tooltip"
 ### 15.0.0 Update to Angular 15
 * a66aef7 -- [CI/CD] Update packages.json version based on GitLab tag.
 *   a781a63 -- Merge branch '5-add-local-mock-data-for-static-deployed-demonstration' into 'master'