Unify Github CI workflows

Signed-off-by: yubiuser <github@yubiuser.dev>

.github/workflows/CI.yml

@@ -1,4 +1,4 @@
-name: ShellCheck
+name: CI Tests
 on:
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
@@ -19,3 +19,14 @@ jobs:
       with:
         severity: warning
         display-engine: sarif-fmt
+
+    - name: Spell-Checking
+      uses: codespell-project/actions-codespell@master
+      with:
+        ignore_words_file: .codespellignore
+
+    - name: Get editorconfig-checker
+      uses: editorconfig-checker/action-editorconfig-checker@main # tag v1.0.0 is really out of date
+
+    - name: Run editorconfig-checker
+      run: editorconfig-checker

.github/workflows/codespell.yml

@@ -1,18 +0,0 @@
-name: Codespell
-on:
-  pull_request:
-    types: [opened, synchronize, reopened, ready_for_review]
-
-jobs:
-  spell-check:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    steps:
-    -
-      name: Checkout repository
-      uses: actions/checkout@v5.0.0
-    -
-      name: Spell-Checking
-      uses: codespell-project/actions-codespell@master
-      with:
-        ignore_words_file: .codespellignore

.github/workflows/editorconfig-checker.yml

@@ -1,14 +0,0 @@
-name: editorconfig-checker
-
-on:
-    pull_request:
-    push:
-
-jobs:
-    build:
-      name: editorconfig-checker
-      runs-on: ubuntu-latest
-      steps:
-        - uses: actions/checkout@v5.0.0
-        - uses: editorconfig-checker/action-editorconfig-checker@main # current tag v1.0.0 is really out-of-date
-        - run: editorconfig-checker