ci: Install jq for wasm builds.

Author: scottmarchant

.github/workflows/pull_request.yml

@@ -31,6 +31,7 @@ jobs:
         run: |
           apt-get update -y -q
           apt-get install -y -q curl
+          apt-get install -y -q jq
           version="$(swift --version | head -n1)"
           tag="$(curl -sL "https://raw.githubusercontent.com/swiftwasm/swift-sdk-index/refs/heads/main/v1/tag-by-version.json" | jq -e -r --arg v "$version" '.[$v] | .[-1]')"
           curl -sL "https://raw.githubusercontent.com/swiftwasm/swift-sdk-index/refs/heads/main/v1/builds/$tag.json" | jq -r '.["swift-sdks"]["wasm32-unknown-wasi"] | "swift sdk install \"\(.url)\" --checksum \"\(.checksum)\""' | sh -x