fix: correctly use secrets for woodpecker

.woodpecker.yml

@@ -40,10 +40,8 @@ steps:
       repo: git.faercol.me/polyculeconnect/polyculeconnect
       registry: git.faercol.me
       tags: latest
-      username:
-        from_secret: GIT_USERNAME
-      password:
-        from_secret: GIT_PASSWORD
+      username: $GIT_USERNAME
+      password: $GIT_PASSWORD
       platforms:
         - linux/amd64
         # - linux/arm64
@@ -53,6 +51,7 @@ steps:
     when:
       branch:
         - main
+    secrets: [git_username, git_password]
 
 trigger:
   event:
@@ -78,11 +77,10 @@ steps:
       platforms:
         - linux/amd64
         # - linux/arm64
-      username:
-        from_secret: GIT_USERNAME
-      password:
-        from_secret: GIT_PASSWORD
+      username: $GIT_USERNAME
+      password: $GIT_PASSWORD
+    secrets: [git_username, git_password]
 
 trigger:
   event:
-    - tag
+    - tag