bump msrv

Author: aumetra

.github/workflows/dsa.yml

@@ -24,7 +24,7 @@ jobs:
           - thumbv7em-none-eabi
           - wasm32-unknown-unknown
         toolchain:
-          - 1.72.0 # MSRV
+          - 1.73.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
@@ -42,7 +42,7 @@ jobs:
           - macos-latest
           - windows-latest
         toolchain:
-          - 1.72.0 # MSRV
+          - 1.73.0 # MSRV
           - stable
     runs-on: ${{ matrix.platform }}
     steps: