patch 8.2.3034: installing packages on github CI sometimes fails

Problem:    Installing packages on github CI sometimes fails.
Solution:   Update package information first. (Christian Brabandt,
            closes #8432)

Author: chrisbra

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
 
       - name: Install packages
         run: |
-          sudo apt-get install -y \
+          sudo apt update && sudo apt install -y \
             autoconf \
             lcov \
             gettext \

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3034,
 /**/
     3033,
 /**/