Update .gitignore and add .woodpecker.yml

.gitignore

@@ -7,6 +7,7 @@
 # Icon must end with two \r
 Icon
 
+
 # Thumbnails
 ._*
 
@@ -52,3 +53,4 @@ $RECYCLE.BIN/
 # Windows shortcuts
 *.lnk
 
+.aider*

.woodpecker.yml

@@ -0,0 +1,9 @@
+pipeline:
+  test:
+    image: php:7.4-cli
+    commands:
+      - apt-get update && apt-get install -y git
+      - php -l wpa-superstar-plugin.php  # Syntax check
+      - php -l admin/settings.php
+      - php -l includes/speed-functions.php
+      - echo "Basic linting passed"