CI: Bump Rust version

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        rust: [1.41.1, stable]
+        rust: [1.52, stable]
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v2
@@ -45,9 +45,9 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-            toolchain: 1.52.0
-            components: clippy
-            override: true
+          toolchain: 1.52
+          components: clippy
+          override: true
       - uses: actions-rs/clippy-check@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -60,8 +60,8 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions-rs/toolchain@v1
       with:
-          toolchain: 1.52.0
-          override: true
+        toolchain: 1.52
+        override: true
     - run: rustup component add rustfmt
     - uses: actions-rs/cargo@v1
       with: