.gitlab-ci.yml: swap the order of build and test stages

The test stage runs one, non-cross compiled unit test job. The build
stage runs ten cross compiled build jobs. If unit tests fail all the
cross-building has gone to waste. Swap the order to detect issues
earlier.

Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

.gitlab-ci.yml

@@ -4,8 +4,8 @@
 stages:
   - compliance
   - static
-  - build
   - test
+  - build
   - integration
 
 include: