examples/tests: fix yq task

Fix yq image version to 3

Signed-off-by: Vincent Demeester <[email protected]>

Author: vdemeester

examples/v1alpha1/pipelineruns/pipelinerun.yaml

@@ -125,7 +125,7 @@ spec:
       description: The path to the image to replace in the yaml manifest (arg to yq)
   steps:
   - name: replace-image
-    image: mikefarah/yq
+    image: mikefarah/yq:3
     command: ['yq']
     args:
     - "w"

examples/v1beta1/pipelineruns/pipelinerun.yaml

@@ -200,7 +200,7 @@ spec:
   - name: source
   steps:
   - name: replace-image
-    image: mikefarah/yq
+    image: mikefarah/yq:3
     command: ['yq']
     args:
     - "w"

test/yamls/v1beta1/pipelineruns/pipelinerun.yaml

@@ -200,7 +200,7 @@ spec:
   - name: source
   steps:
   - name: replace-image
-    image: mikefarah/yq
+    image: mikefarah/yq:3
     command: ['yq']
     args:
     - "w"