fix(ci): remove expression from build-models job name

GitHub Actions doesn't support expression syntax (${{ }}) in job names.
Changed to static name. Quantization level still visible in step output.

Author: jdalton

.github/workflows/build-wasm.yml

@@ -181,7 +181,7 @@ jobs:
           retention-days: 7
 
   build-models:
-    name: 🤖 Build AI Models (${{ inputs.models-quant-level || 'INT4' }} Quantized)
+    name: 🤖 Build AI Models
     if: ${{ inputs.build-models != false }}
     runs-on: ubuntu-latest
     timeout-minutes: 60