Fix CI script for configure.in rename

.gitlab-ci.yml

@@ -17,9 +17,9 @@ archive:
   - apt-get install --quiet --assume-yes libsane-dev
   script:
   - build=$(git describe --match '1.*' | sed 's/.*\.//; s/-.*//');
-    sed -i "/^V_BUILD/s/=.*/=$build/" configure.in;
+    sed -i "/^V_BUILD/s/=.*/=$build/" configure.ac;
     extra=$(git describe --dirty --match '1.*' | sed 's/^[^-]*//');
-    sed -i "/^V_EXTRA/s/=.*/=$extra/" configure.in
+    sed -i "/^V_EXTRA/s/=.*/=$extra/" configure.ac
   - autoconf --force
   - ./configure
   - make dist