bump actions version

- bump checkout to @v4
- bump rust-toolchain to @v1

.github/workflows/build_and_test.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Clone spacebar server
       run: |
         git clone https://github.com/bitfl0wer/server.git

.github/workflows/rust-clippy.yml

@@ -26,10 +26,10 @@ jobs:
       actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install Rust toolchain
-        uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af #@v1
+        uses: actions-rs/toolchain@v1
         with:
           profile: minimal
           toolchain: stable