gha: use sudo -E in some places to prevent dropping env-vars

Using `-E` preserves environment variables, except for PATH, so PATH has to be
manually set to match the current environment.

I removed env-vars that were redundant (such as `GOPATH=$GOPATH`), which should
be handled by `-E`.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

.github/workflows/release.yml

@@ -132,7 +132,7 @@ jobs:
           RUNC_FLAVOR: runc
         run: |
           if [[ "${OS}" == "linux" ]]; then
-            sudo PATH=$PATH script/setup/install-seccomp
+            sudo -E PATH=$PATH script/setup/install-seccomp
           fi
           make cri-cni-release
         working-directory: src/github.com/containerd/containerd