chore: adjust for new OctoPrint branching strategy

Author: foosel

.github/workflows/build.yml

@@ -62,12 +62,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        octoprint: ["master", "maintenance"]
+        octoprint: ["main", "dev"]
         python: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
         exclude:
-          - octoprint: "maintenance"
+          - octoprint: "dev"
             python: "3.7"
-          - octoprint: "maintenance"
+          - octoprint: "dev"
             python: "3.8"
     steps:
       - name: ⬇ Download build result