Release 3.0.9 (#156)

* chore(version.go): we're now at 3.0.9

* chore(go.mod go.sum): update dependencies

* fix(gha/cross.yml): brew update seems broken?

See https://github.com/ooni/probe-cli/pull/156/checks?check_run_id=1315116799

.github/workflows/cross.yml

@@ -38,7 +38,6 @@ jobs:
         with:
           go-version: "1.14"
       - uses: actions/checkout@v2
-      - run: brew update
       - run: brew install mingw-w64
       - run: ./build.sh windows
       - uses: actions/upload-artifact@v1