chore: Add workflow dispatch inputs for CI configurations across services

### Summary of Changes
- Introduced `workflow_dispatch` inputs for `run_tests`, `run_lint`, `run_build`, and `run_sonar` in the CI workflows for `api-docs`, `api-gateway`, `frontend`, and `service-adapters`.
- This enhancement allows for more flexible and controlled execution of CI processes, enabling developers to selectively run tests, linting, builds, and SonarQube analysis.

### Expected Results
- Improved configurability of CI workflows, facilitating better management of build and testing processes based on specific needs.

.gitea/workflows/api-gateway.yml

@@ -8,6 +8,28 @@ on:
   pull_request:
     paths:
       - 'services/api-gateway/**'
+  workflow_dispatch:
+    inputs:
+      run_tests:
+        description: 'Run tests'
+        required: false
+        default: true
+        type: boolean
+      run_lint:
+        description: 'Run linting'
+        required: false
+        default: true
+        type: boolean
+      run_build:
+        description: 'Run build'
+        required: false
+        default: true
+        type: boolean
+      run_sonar:
+        description: 'Run SonarQube analysis'
+        required: false
+        default: true
+        type: boolean
 
 env:
   REGISTRY: gitea.example.com