pre-commit: Add pyupgrade hook

Another day, another useful hook. We also ignore the preceding patch
that actually did the work, renaming the incorrect named file in the
process.

Change-Id: I412827761fbdeb36702ebaf5c1b727c62e629299
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

.git-blame-ignore-revs

@@ -1,6 +1,7 @@
 # You can configure git to automatically use this file with the following config:
 # git config --global blame.ignoreRevsFile .git-blame-ignore-revs
 
+c5b772db76c071e493a81105c7d8c0def08b2264  # trivial: Prepare for pyupgrade pre-commit hook
 ed0314ac76ae58a6621077feb742efd5c14c3a62  # Blacken everything else
 ac64fdb93c32972575a4523ccb23d0279ef584f5  # Blacken openstackclient.api
 a3778109d0051a25901569e7bafe54915ab25f82  # Blacken openstack.common

.pre-commit-config.yaml

@@ -17,6 +17,11 @@ repos:
       - id: check-yaml
         files: .*\.(yaml|yml)$
         args: ['--unsafe']
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.15.2
+    hooks:
+      - id: pyupgrade
+        args: ['--py38-plus']
   - repo: https://github.com/psf/black
     rev: 24.4.0
     hooks: