github actions: ubuntu - fix the non-interactive build

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 343c699..e23bd50 100644 (file)
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -76,6 +76,7 @@ jobs:
       uses: actions/checkout@v2
     - name: Prepare environment
       run: |
+        export DEBIAN_FRONTEND=noninteractive
         apt-get update
         apt-get -y install apt-utils
         apt-get -y full-upgrade