Bump MSRV in ci workflow

Author: phyber

.github/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
       matrix:
         toolchain-version:
           - 'stable'
-          - '1.65.0'  # MSRV
+          - '1.74.1'  # MSRV
     steps:
       - name: 'Checkout'
         uses: 'actions/checkout@v3'