critical: bump regression data cache-id on CircleCI [skip ci]

This is necessary as now the masks regressions will only be run on
the first echo of ME datasets.

This id bump will only be applied after merging into master, as the
regression tests are run only on master or branches with the prefix
``masks?/``.

Reference: tsalo#1.

Author: oesteban

.circleci/config.yml

@@ -151,8 +151,8 @@ jobs:
     steps:
       - restore_cache:
           keys:
-            - regression-v4-{{ .Revision }}
-            - regression-v4-
+            - regression-v5-{{ .Revision }}
+            - regression-v5-
       - run:
           name: Get truncated BOLD series
           command: |
@@ -175,7 +175,7 @@ jobs:
               echo "Pre-computed masks were cached"
             fi
       - save_cache:
-         key: regression-v4-{{ .Revision }}-{{ epoch }}
+         key: regression-v5-{{ .Revision }}-{{ epoch }}
          paths:
             - /tmp/data
 
@@ -284,7 +284,7 @@ jobs:
 
       - restore_cache:
           keys:
-            - regression-v4-{{ .Revision }}
+            - regression-v5-{{ .Revision }}
       - restore_cache:
           keys:
             - masks-workdir-v2-{{ .Branch }}-{{epoch}}