CI: check Cargo.toml formatting

Author: gentoo90

.github/workflows/ci.yaml

@@ -107,7 +107,15 @@ jobs:
         with:
           command: update
           args: --package num-traits --precise 0.2.18
-      - name: Check formatting
+      - name: Setup Taplo
+        if: matrix.lint
+        uses: uncenter/setup-taplo@v1
+        with:
+          version: "0.8.1"
+      - name: Check Cargo.toml formatting
+        if: matrix.lint
+        run: taplo fmt --check --diff
+      - name: Check sourcecode formatting
         if: matrix.lint
         uses: actions-rs/cargo@v1
         with:

.taplo.toml

@@ -0,0 +1,4 @@
+include = [".taplo.toml", "Cargo.toml"]
+
+[formatting]
+indent_string = "    "

Cargo.toml

@@ -13,7 +13,17 @@ categories = ["api-bindings", "os::windows-apis"]
 
 [dependencies]
 cfg-if = "1.0"
-winapi = { version = "0.3.9", features = ["impl-default", "impl-debug", "minwindef", "minwinbase", "timezoneapi", "winerror", "winnt", "winreg", "handleapi"] }
+winapi = { version = "0.3.9", features = [
+    "impl-default",
+    "impl-debug",
+    "minwindef",
+    "minwinbase",
+    "timezoneapi",
+    "winerror",
+    "winnt",
+    "winreg",
+    "handleapi",
+] }
 chrono = { version = "0.4.6", optional = true }
 serde = { version = "1", optional = true }