fix: bump MSRV

Author: maxday

.github/workflows/build-events.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         toolchain:
-          - "1.70.0" # Current MSRV
+          - "1.71.1" # Current MSRV
           - stable
     env:
       RUST_BACKTRACE: 1

.github/workflows/build-extension.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       matrix:
         toolchain:
-          - "1.70.0" # Current MSRV
+          - "1.71.1" # Current MSRV
           - stable
     env:
       RUST_BACKTRACE: 1

.github/workflows/build-runtime.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         toolchain:
-          - "1.70.0" # Current MSRV
+          - "1.71.1" # Current MSRV
           - stable
     env:
       RUST_BACKTRACE: 1