chore(ci): Remove no-std feature flag for miniscript

The `no-std` feature flag no longer exists for miniscript 13.0.0

Author: evanlinjin

.github/workflows/rust.yml

@@ -17,7 +17,7 @@ jobs:
           - version: stable
           - version: 1.85.0
         features:
-          - --no-default-features --features miniscript/no-std
+          - --no-default-features 
           - --all-features
     steps:
       - uses: actions/checkout@v4
@@ -44,7 +44,7 @@ jobs:
         with:
             toolchain: stable
       - name: Check no-std
-        run: cargo check --no-default-features --features miniscript/no-std
+        run: cargo check --no-default-features
 
   fmt-clippy:
     runs-on: ubuntu-latest

ci/pin-msrv.sh

@@ -2,7 +2,3 @@
 
 set -x
 set -euo pipefail
-
-cargo update -p home --precise "0.5.11"
-cargo update -p time --precise "0.3.45"
-cargo update -p time-core --precise "0.1.7"