ci: dependabot major versions for official actions (#3888)

* ci: dependabot major versions for official actions

* style: use extend-select for flake8

.github/dependabot.yml

@@ -7,10 +7,5 @@ updates:
       interval: "daily"
     ignore:
       # Official actions have moving tags like v1
-      # that are used, so they don't need updates here
-      - dependency-name: "actions/checkout"
-      - dependency-name: "actions/setup-python"
-      - dependency-name: "actions/cache"
-      - dependency-name: "actions/upload-artifact"
-      - dependency-name: "actions/download-artifact"
-      - dependency-name: "actions/labeler"
+      - dependency-name: "actions/*"
+        update-types: ["version-update:semver-minor", "version-update:semver-patch"]

setup.cfg

@@ -46,4 +46,4 @@ max-line-length = 120
 show_source = True
 exclude = .git, __pycache__, build, dist, docs, tools, venv
 extend-ignore = E203, E722, B950
-select = C,E,F,N,W,B,B9
+extend-select = B9