fix code coverage workflow

Author: aagbotemi

.github/workflows/code_coverage.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     env:
       CARGO_INCREMENTAL: '0'
-      RUSTFLAGS: '-Cinstrument-coverage -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off'
-      RUSTDOCFLAGS: '-Cinstrument-coverage -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off'
-    
+      RUSTFLAGS: '-Cinstrument-coverage -Ccodegen-units=1 -Cllvm-args=--inline-threshold=0 -Clink-dead-code -Coverflow-checks=off'
+      RUSTDOCFLAGS: '-Cinstrument-coverage -Ccodegen-units=1 -Cllvm-args=--inline-threshold=0 -Clink-dead-code -Coverflow-checks=off'
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -42,6 +42,9 @@ jobs:
       - name: Test RPC
         run: cargo test --features rpc
 
+      - name: Test Bip322
+        run: cargo test --features bip322
+
       - id: coverage
         name: Generate coverage
         uses: actions-rs/grcov@v0.1.5