👷 Fix lint - dependencies CI job

.woodpecker/.validate.yaml

@@ -6,7 +6,7 @@ steps:
       cargo fmt --all --check
 
   - name: lint - clippy
-    image: rust:latest
+    image: rust:1.86
     commands: |
       apt update && apt install -y libgtk-3-dev libjavascriptcoregtk-4.1-dev libwebkit2gtk-4.1-dev
       rustup component add clippy
@@ -15,9 +15,11 @@ steps:
     failure: ignore
 
   - name: lint - dependencies
-    image: rust:latest
+    image: rust:1.86
     commands: |
+      apt update && apt install -y libgtk-3-dev libjavascriptcoregtk-4.1-dev libwebkit2gtk-4.1-dev
       cargo install --locked cargo-udeps
+      rustup default nightly
       cargo udeps
 
   - name: build - web (dockerize)