Remove new lines at the end of git hashes.

generic-tasks/j7s-git-clone-hash.yaml

@@ -24,4 +24,4 @@ spec:
       cd $(workspaces.output.path)
       git checkout $(params.hash)
 
-      git rev-parse HEAD > $(results.hash.path)
+      echo -n $(git rev-parse HEAD) > $(results.hash.path)

generic-tasks/j7s-git-clone.yaml

@@ -23,4 +23,4 @@ spec:
       git clone --single-branch --branch $(params.branch) $(params.url) $(workspaces.output.path)
 
       cd $(workspaces.output.path)
-      git rev-parse HEAD > $(results.hash.path)
+      echo -n $(git rev-parse HEAD) > $(results.hash.path)