github actions: move wasm steps to a separate job

Improve parallelization and reporting by running the mostly-unrelated
wasm target steps in a separate job.

This removes feedback on these targets outside the stable toolchain.

.github/workflows/lint.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - main
-  pull-request:
+  pull_request:
     branches:
       - main
   schedule:

.github/workflows/tests.yml

@@ -41,14 +41,3 @@ jobs:
         with:
           command: test
           args: --release
-
-      - name: WASM pkg
-        run: |
-          curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
-          cd ./star-wasm
-          make build
-
-      - name: WASM www
-        run: |
-          cd ./star-wasm/www
-          make

.github/workflows/wasm.yml

@@ -0,0 +1,33 @@
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+name: Tests
+
+jobs:
+  wasm:
+    runs-on: ubuntu-latest
+
+    env:
+      RUSTFLAGS: ''
+      CARGO_PROFILE_DEV_DEBUG: '0' # reduce size of target directory
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
+
+      - name: Cache
+        uses: Swatinem/rust-cache@a95ba195448af2da9b00fb742d14ffaaf3c21f43 # v2.7.0
+
+      - name: WASM pkg
+        run: |
+          curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+          cd ./star-wasm
+          make build
+
+      - name: WASM www
+        run: |
+          cd ./star-wasm/www
+          make