Extract toml config to rust-toolchain.toml

cherry-picked from #4699

query-engine/query-engine-wasm/build.sh

@@ -40,27 +40,19 @@ if [[ -z "${WASM_BUILD_PROFILE:-}" ]]; then
         WASM_BUILD_PROFILE="release"
     fi
 fi
+echo "Using build profile: \"${WASM_BUILD_PROFILE}\"" 
 
 if [ "$WASM_BUILD_PROFILE" = "dev" ]; then
     WASM_TARGET_SUBDIR="debug"
 else
     WASM_TARGET_SUBDIR="$WASM_BUILD_PROFILE"
 fi
 
-echo "Using build profile: \"${WASM_BUILD_PROFILE}\"" 
-
-echo "ℹ️  Configuring rust toolchain to use nightly and rust-src component"
-rustup default nightly-2024-01-25
-rustup target add wasm32-unknown-unknown
-rustup component add rust-std --target wasm32-unknown-unknown
-rustup component add rust-src --target wasm32-unknown-unknown
-export RUSTFLAGS="-Zlocation-detail=none"
-CARGO_TARGET_DIR=$(cargo metadata --format-version 1 | jq -r .target_directory)
-
-build() {
+build() {    
     local CONNECTOR="$1"
+    local CARGO_TARGET_DIR=$(cargo metadata --format-version 1 | jq -r .target_directory)
     echo "🔨 Building $CONNECTOR"
-    CARGO_PROFILE_RELEASE_OPT_LEVEL="z" cargo build \
+    RUSTFLAGS="-Zlocation-detail=none" CARGO_PROFILE_RELEASE_OPT_LEVEL="z" cargo build \
         -p query-engine-wasm \
         --profile "$WASM_BUILD_PROFILE" \
         --features "$CONNECTOR" \

query-engine/query-engine-wasm/rust-toolchain.toml

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "nightly-2024-01-25"
+components = ["rust-src"]
+targets = ["wasm32-unknown-unknown"]

rust-toolchain.toml

@@ -0,0 +1,4 @@
+[toolchain]
+channel = "1.76.0"
+components = ["clippy", "rustfmt", "rust-src"]
+targets = ["wasm32-unknown-unknown"]