release: Bump to 0.3.4 and pin rustc to 1.66.1

Author: bhelx

.github/workflows/publish.yml

@@ -17,7 +17,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: default
-          toolchain: stable
+          toolchain: 1.66.1
           target: wasm32-wasi
           default: true
 
@@ -87,7 +87,7 @@ jobs:
         with:
           target: ${{ matrix.target }}
           profile: default
-          toolchain: 1.66.0
+          toolchain: 1.66.1
           default: true
 
       - name: Install gnu gcc

Cargo.toml

@@ -5,7 +5,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.3.3"
+version = "0.3.4"
 edition = "2021"
 authors = ["The Extism Authors"]
 license = "BSD-Clause-3"