Add linux-pref job (#33261)

Job will do some performance benchmarks (Dromeo, Speedometer) and mesure binary size and will report results to bencher.dev

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
Co-authored-by: DK Liao <dklassic@gmail.com>

.github/workflows/linux.yml

@@ -32,6 +32,10 @@ on:
         required: false
         type: boolean
         default: false
+      bencher:
+        required: false
+        default: false
+        type: boolean
   workflow_dispatch:
     inputs:
       profile:
@@ -63,6 +67,10 @@ on:
         required: false
         type: boolean
         default: false
+      bencher:
+        required: false
+        default: false
+        type: boolean
 
 env:
   RUST_BACKTRACE: 1
@@ -219,3 +227,10 @@ jobs:
       wpt-sync-from-upstream: ${{ inputs.wpt-sync-from-upstream }}
       wpt-layout: "layout-2013"
     secrets: inherit
+
+  bencher:
+    needs: ["build"]
+    # benches must be release (we will do benches for production profile in servo/servo-nightly-builds)
+    if: ${{ inputs.bencher && inputs.profile == 'release' && github.event_name != 'workflow_dispatch' && github.event_name != 'merge_queue' }}
+    uses: ./.github/workflows/linux-bencher.yml
+    secrets: inherit