contrib scripts: Change from prodaccess to gcert.

prodaccess is going away in favor of gcert.

BUG=None
TEST=Manual

Change-Id: I8610958def99b673cd56e4853bc6358585fecc87
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2375625
Tested-by: Michael Mortensen <mmortensen@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Michael Mortensen <mmortensen@google.com>
diff --git a/contrib/cl-size-diff b/contrib/cl-size-diff
index 20a2c5e..274f4b9 100755
--- a/contrib/cl-size-diff
+++ b/contrib/cl-size-diff
@@ -13,7 +13,8 @@
   exit 1
 }
 
-prodcertstatus &>/dev/null || prodaccess
+# Make sure we have gcert access so we don't fail without getting any work done.
+gcertstatus >&/dev/null || gcert
 
 f1-sql \
   -csv_output=1 \
diff --git a/contrib/get-build-timings.sh b/contrib/get-build-timings.sh
index fd3ce74..850b9d4 100755
--- a/contrib/get-build-timings.sh
+++ b/contrib/get-build-timings.sh
@@ -8,8 +8,8 @@
 
 build_id="$1"
 
-# Make sure we have prod access so we don't fail without getting any work done.
-prodcertstatus 1>/dev/null 2>/dev/null || prodaccess
+# Make sure we have gcert access so we don't fail without getting any work done.
+gcertstatus >&/dev/null || gcert
 
 # Run the query.
 (f1-sql -quiet=1 -csv_output=1 \
diff --git a/contrib/updog.sh b/contrib/updog.sh
index 6c5df39..df5cf32 100755
--- a/contrib/updog.sh
+++ b/contrib/updog.sh
@@ -7,8 +7,8 @@
 
 package_name="$1"
 
-# Make sure we have prod access so we don't fail without getting any work done.
-prodcertstatus 1>/dev/null 2>/dev/null || prodaccess
+# Make sure we have gcert access so we don't fail without getting any work done.
+gcertstatus >&/dev/null || gcert
 
 dremel \
   --min_completion_ratio 1 \