chore: fix some more sonar warnings

Author: RobBrazier

.github/workflows/build.yaml

@@ -20,6 +20,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          depth: 0
 
       - name: Install tools from mise
         uses: jdx/mise-action@5ac50f778e26fac95da98d50503682459e86d566 # v3.2.0

sonar-project.properties

@@ -1,4 +1,5 @@
 sonar.projectKey=RobBrazier_calibre-plugins
 sonar.organization=robbrazier
+sonar.exclusions=coverage.xml,xunit.xml
 sonar.python.xunit.reportPath=xunit.xml
 sonar.python.coverage.reportPaths=coverage.xml