Add manifest-path to allow cargo projects at any location

action.yml

@@ -6,6 +6,12 @@ branding:
   icon: "check-square"
   color: "yellow"
 
+inputs:
+  manifest-path:
+    description: "Specify the --manifest-path argument to rustfmt"
+    required: false
+    default: "./Cargo.toml"
+
 runs:
   using: composite
   steps:
@@ -14,7 +20,7 @@ runs:
       run: |
         # Run cargo and store the original output
         CARGO_STATUS=0
-        CARGO_OUTPUT=$(cargo fmt --all -- --color=always --check 2>/dev/null) || CARGO_STATUS=$?
+        CARGO_OUTPUT=$(cargo fmt --all --manifest-path=${{ inputs.manifest-path }} -- --color=always --check 2>/dev/null) || CARGO_STATUS=$?
 
         if [ ${CARGO_STATUS} -eq 0 ]; then
             cat <<MARKDOWN_INTRO >> $GITHUB_STEP_SUMMARY