[Release|CI/CD] Download only linux artefacts for deb package build (#7271)

This PR contains a fix for the rc-build release pipeline. The problem
was, that for the deb package build were all the artefacts downloaded
and merged together, what could lead to the issue, that the polkadot
linux binary was overwritten with the macos one.

.github/workflows/release-reusable-rc-buid.yml

@@ -263,9 +263,24 @@ jobs:
         ref: ${{ inputs.release_tag }}
         fetch-depth: 0
 
-    - name: Download artifacts
+    - name: Download polkadot_x86_64-unknown-linux-gnu artifacts
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
       with:
+        name: polkadot_x86_64-unknown-linux-gnu
+        path: target/production
+        merge-multiple: true
+
+    - name: Download polkadot-execute-worker_x86_64-unknown-linux-gnu artifacts
+      uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
+      with:
+        name: polkadot-execute-worker_x86_64-unknown-linux-gnu
+        path: target/production
+        merge-multiple: true
+
+    - name: Download polkadot-prepare-worker_x86_64-unknown-linux-gnu artifacts
+      uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
+      with:
+        name: polkadot-prepare-worker_x86_64-unknown-linux-gnu
         path: target/production
         merge-multiple: true