ci: bump the MSRV to 1.80

.github/workflows/ci.yml

@@ -40,13 +40,13 @@ jobs:
     - name: Default features
       run: cargo test --workspace
   msrv:
-    name: "Check MSRV: 1.74.0"
+    name: "Check MSRV: 1.80.0"
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
     - name: Install Rust
-      uses: dtolnay/rust-toolchain@1.74.0
+      uses: dtolnay/rust-toolchain@1.80.0
     - uses: Swatinem/rust-cache@v2
     - name: Default features
       run: cargo check --all-targets
@@ -72,7 +72,7 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v4
     - name: Install Rust
-      uses: dtolnay/rust-toolchain@1.74.0
+      uses: dtolnay/rust-toolchain@1.80.0
       with:
         components: clippy
     - uses: Swatinem/rust-cache@v2
@@ -105,7 +105,7 @@ jobs:
     - uses: actions/checkout@v4
     - uses: EmbarkStudios/cargo-deny-action@v1
       with:
-        rust-version: "1.74.0"
+        rust-version: "1.80.0"
   test-action:
     name: Test cargo-multivers action
     runs-on: windows-latest