CI: increase unit test timeout in cf-d pipeline

It appears that switching to the new ARD concourse has slowed down runs
of these unit tests significantly. Previously taking ~10 mins, they are
now requiring more than 20 mins.

For now, I'm just going to increase the timeout. We should try and speed
this up though. Either by powering up the containers that tasks run in,
or by making these unit tests parallelizable.

Since we already had a 20 min timeout in the test script, I was unable
to plugin a timeout using concourse config args. Therefore, I stripped
the hard coded timeout from the test script, thinking that we can just
hardcode the timeout into CI wherever we need.

The two timeouts I've set so far are:
* cf-deployment/unit-test-golang-tests: 1h
* pull-requests/run-unit-tests-on-all-cf-deployment-prs: 20 mins

Author: ctlong

ci/pipelines/cf-deployment.yml

@@ -403,6 +403,9 @@ jobs:
       run:
         dir: cf-deployment-develop/units
         path: ./test
+        args:
+        - -timeout
+        - 1h
 
 - name: unit-test-update-releases-coverage
   serial: true

ci/pipelines/pull-requests.yml

@@ -184,7 +184,6 @@ jobs:
                 path: scripts/test
           - task: unit-test-golang-ops-files
             config:
-
               platform: linux
               image_resource:
                 type: docker-image
@@ -195,6 +194,9 @@ jobs:
               run:
                 dir: cf-deployment-all-branches/units
                 path: ./test
+                args:
+                - -timeout
+                - 20m
         on_failure:
           do:
           - task: write-pr-check-failure-comment

units/test

@@ -23,5 +23,5 @@ pushd "$(dirname "$0")" > /dev/null
   fi
 
   echo "Starting unit tests..."
-  go test "$@" $(suites) -timeout=20m
+  go test "$@" $(suites)
 popd > /dev/null