Rename workflow file, update test matrix

Author: MonolithProjects

.github/workflows/main.yml renamed to .github/workflows/tests.yml

@@ -16,7 +16,7 @@ jobs:
     name: Test Repo Runner
     environment:
       name: test
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
@@ -27,7 +27,7 @@ jobs:
             tag: "latest"
           - os: "debian11"
             tag: "latest"
-          - os: "fedora35"
+          - os: "fedora37"
             tag: "latest"
           - os: "ubuntu20"
             tag: "latest"
@@ -54,7 +54,7 @@ jobs:
     name: Test Org Runner
     environment:
       name: test
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
     steps: