ci: disable symbol export on Windows verification (#1486)

* Set rust flags on windows release verification

* Forward flag to linker

* Switch to msvc rust toolchain

* Revert "Switch to msvc rust toolchain"

This reverts commit 9879fc7.

Author: timsaucer

.github/workflows/verify-release-candidate.yml

@@ -73,6 +73,11 @@ jobs:
           version: "27.4"
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set RUSTFLAGS for Windows GNU linker
+        if: matrix.os == 'windows'
+        shell: bash
+        run: echo "RUSTFLAGS=-C link-arg=-Wl,--exclude-libs=ALL" >> "$GITHUB_ENV"
+
       - name: Run release candidate verification
         shell: bash
         run: ./dev/release/verify-release-candidate.sh "${{ inputs.version }}" "${{ inputs.rc_number }}"