ci: remove ARM64 cross-toolchain and OpenSSL installation

The ARM64 cross-toolchain and OpenSSL installation steps were removed from the CI workflow as they are no longer required for the build process. This simplifies the workflow and reduces unnecessary dependencies.

Author: ArnavK-09

.github/workflows/publish.yml

@@ -112,18 +112,6 @@ jobs:
             sudo apt-get install -y --no-install-recommends \
               --allow-unauthenticated musl-tools
           fi
-      - name: Install cross toolchains & OpenSSL for ARM64
-        if: matrix.build.TARGET == 'aarch64-unknown-linux-gnu'
-        run: |
-          sudo dpkg --add-architecture arm64
-          sudo apt-get update
-          sudo apt-get install -y \
-            gcc-aarch64-linux-gnu \
-            pkg-config \
-            libssl-dev:arm64 \
-            qemu-user
-          echo "PKG_CONFIG_ALLOW_CROSS=1" >> $GITHUB_ENV
-          echo "PKG_CONFIG_PATH=/usr/lib/aarch64-linux-gnu/pkgconfig" >> $GITHUB_ENV
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with: