ci: manually install toolchain components as a workaround

Author: auxesis

.github/workflows/test-eql.yml

@@ -54,6 +54,9 @@ jobs:
 
       - name: Test EQL for Postgres ${{ matrix.postgres-version }}
         run: |
+          export active_rust_toolchain=$(rustup show active-toolchain | cut -d' ' -f1)
+          rustup component add --toolchain ${active_rust_toolchain} rustfmt clippy
+
           echo '###################################'
           echo '# mise rust'
           echo '###################################'