ci: add path filters to clippy and tests workflows (#715)

* ci: add path filters to clippy and tests workflows

Only trigger clippy and test workflows when Rust source files,
Cargo manifests, Cargo.lock, or the workflow file itself changes.
Avoids unnecessary CI runs on docs-only or config-only changes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* ci: include .cargo/config.toml in path filters

Rustflags and linker config changes can affect clippy and test outcomes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: lklimek

.github/workflows/clippy.yml

@@ -5,8 +5,20 @@ on:
     branches:
       - main
       - "v*-dev"
+    paths:
+      - "**/*.rs"
+      - "**/Cargo.toml"
+      - "Cargo.lock"
+      - ".cargo/config.toml"
+      - ".github/workflows/clippy.yml"
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+    paths:
+      - "**/*.rs"
+      - "**/Cargo.toml"
+      - "Cargo.lock"
+      - ".cargo/config.toml"
+      - ".github/workflows/clippy.yml"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}

.github/workflows/tests.yml

@@ -5,8 +5,20 @@ on:
     branches:
       - main
       - "v*-dev"
+    paths:
+      - "**/*.rs"
+      - "**/Cargo.toml"
+      - "Cargo.lock"
+      - ".cargo/config.toml"
+      - ".github/workflows/tests.yml"
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+    paths:
+      - "**/*.rs"
+      - "**/Cargo.toml"
+      - "Cargo.lock"
+      - ".cargo/config.toml"
+      - ".github/workflows/tests.yml"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}