Improve readability of env sections of .cirrus.yml

[skip ci]

.cirrus.yml

@@ -129,6 +129,10 @@ qa_task:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
   env:
+    # No need to clone the full history.
+    # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
+    # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
+    CIRRUS_CLONE_DEPTH: 50
     matrix:
       QA_CATEGORY: Cat1
       QA_CATEGORY: Cat2
@@ -142,10 +146,6 @@ qa_task:
       QA_CATEGORY: License
       QA_CATEGORY: Branch
       QA_CATEGORY: Upgrade
-    # No need to clone the full history.
-    # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
-    # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
-    CIRRUS_CLONE_DEPTH: 50
   gradle_cache:
     folder: ~/.gradle/caches
   script:
@@ -368,12 +368,12 @@ test_upgrade_mysql57_task:
           MYSQL_USER: sonar
           MYSQL_PASSWORD: sonar
   env:
+    # No need to clone the full history.
+    # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
+    # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
+    CIRRUS_CLONE_DEPTH: 50
     matrix:
       QA_CATEGORY: Upgrade
-      # No need to clone the full history.
-      # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
-      # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
-    CIRRUS_CLONE_DEPTH: 50
   gradle_cache:
     folder: ~/.gradle/caches
   script:
@@ -410,12 +410,12 @@ test_upgrade_mssql2017_task:
           ACCEPT_EULA: Y
           SA_PASSWORD: sonarqube!1
   env:
+    # No need to clone the full history.
+    # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
+    # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
+    CIRRUS_CLONE_DEPTH: 50
     matrix:
       QA_CATEGORY: Upgrade
-      # No need to clone the full history.
-      # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
-      # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
-    CIRRUS_CLONE_DEPTH: 50
   gradle_cache:
     folder: ~/.gradle/caches
   script:
@@ -450,12 +450,12 @@ test_upgrade_oracle12_task:
         env:
           ORACLE_PWD: sonarqube
   env:
+    # No need to clone the full history.
+    # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
+    # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
+    CIRRUS_CLONE_DEPTH: 50
     matrix:
       QA_CATEGORY: Upgrade
-      # No need to clone the full history.
-      # Depth of 1 is not enough because it would fail the build in case of consecutive pushes
-      # (example of error: "Hard resetting to c968ecaf7a1942dacecd78480b3751ac74d53c33...Failed to force reset to c968ecaf7a1942dacecd78480b3751ac74d53c33: object not found!")
-    CIRRUS_CLONE_DEPTH: 50
   gradle_cache:
     folder: ~/.gradle/caches
   script: