CI: add build-args (#36947)

Add `build-args` input in CI and try_parser job definition so we can
pass own build args to `./mach build`

Testing: There are tests for try parser and I tested CI in my fork.
Fixes: partial fix #36823

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

.github/workflows/linux.yml

@@ -6,6 +6,10 @@ on:
         required: false
         default: "release"
         type: string
+      build-args:
+        default: ""
+        required: false
+        type: string
       wpt-args:
         default: ""
         required: false
@@ -166,7 +170,7 @@ jobs:
 
       - name: Build (${{ inputs.profile }})
         run: |
-          ./mach build --use-crown --locked --${{ inputs.profile }}
+          ./mach build --use-crown --locked --${{ inputs.profile }} ${{ inputs.build-args }}
           cp -r target/cargo-timings target/cargo-timings-linux
       - name: Smoketest
         run: xvfb-run ./mach smoketest --${{ inputs.profile  }}