Add path filters for azure PR jobs (#14544)

.azure/app-cloud-e2e.yml

@@ -20,8 +20,16 @@ trigger:
     - "examples/app_*"
 
 pr:
-  - "master"
-  - "release/*"
+  branches:
+    include:
+      - "master"
+      - "release/*"
+  paths:
+    include:
+    - ".azure/app-cloud-e2e.yml"
+    - "requirements/app/**"
+    - "src/lightning_app/**"
+    - "examples/app_*"
 
 # variables are automatically exported as environment variables so this will override pip's default cache dir
 variables:

.azure/gpu-tests-lite.yml

@@ -22,8 +22,18 @@ trigger:
       - "tests/tests_lite/run_standalone_tests.sh"  # a symlink to the one above
 
 pr:
-  - "master"
-  - "release/*"
+  branches:
+    include:
+      - "master"
+      - "release/*"
+  paths:
+    include:
+      - ".azure/gpu-tests-lite.yml"
+      - "requirements/lite/**"
+      - "src/lightning_lite/**"
+      - "tests/tests_lite/**"
+      - "tests/tests_pytorch/run_standalone_tests.sh"
+      - "tests/tests_lite/run_standalone_tests.sh"  # a symlink to the one above
 
 jobs:
   - job: testing

.azure/hpu-tests.yml

@@ -18,8 +18,17 @@ trigger:
       - "tests/tests_pytorch/**"
 
 pr:
-  - "master"
-  - "release/*"
+  branches:
+    include:
+      - "master"
+      - "release/*"
+  paths:
+    include:
+      - ".azure/hpu-tests.yml"
+      - "examples/pl_hpu/mnist_sample.py"
+      - "requirements/pytorch/**"
+      - "src/pytorch_lightning/**"
+      - "tests/tests_pytorch/**"
 
 jobs:
   - job: testing