[PATCH] ci: enable ABI check in GHA

[David Marchand]

Enable ABI checks to avoid breakage on this LTS branch.

Signed-off-by: David Marchand <david.marchand at redhat.com>
---
Tested in my DPDK fork GHA:
https://github.com/david-marchand/dpdk/actions/runs/3377553129/jobs/5606622502#step:16:17794

---
 .github/workflows/build.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2e9c4be6d0..6cf997d6ee 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,7 +23,7 @@ jobs:
       LIBABIGAIL_VERSION: libabigail-1.8
       MINI: ${{ matrix.config.mini != '' }}
       PPC64LE: ${{ matrix.config.cross == 'ppc64le' }}
-      REF_GIT_TAG: none
+      REF_GIT_TAG: v21.11
       RUN_TESTS: ${{ contains(matrix.config.checks, 'tests') }}
 
     strategy:
@@ -40,7 +40,7 @@ jobs:
           - os: ubuntu-18.04
             compiler: gcc
             library: shared
-            checks: doc+tests
+            checks: abi+doc+tests
           - os: ubuntu-18.04
             compiler: clang
             library: static
-- 
2.37.3