github-ci: pin macos build to 10.15

There is currently a build failure with macos-latest (recently updated)
to 11 in the libhtp test suite code. Not sure if there are other
build issues in libhtp or Suricata at this time.

(cherry picked from commit 8b9721b2652790354e619c77622cf84c766915a3)

diff --git a/.github/workflows/builds.yml b/.github/workflows/builds.yml
index 0da4cec31f7e57892b76d999b4d09219bf48438d..196ea62e31ef84646631b5fa0e3dc41167a18e55 100644 (file)
--- a/.github/workflows/builds.yml
+++ b/.github/workflows/builds.yml
@@ -1130,7 +1130,8 @@ jobs:
 
   macos-latest:
     name: MacOS Latest
-    runs-on: macos-latest
+    # use 10.15 for now. Build fails on macos-11 (aka macos-latest)
+    runs-on: macos-10.15
     needs: [prepare-deps]
     steps:
       # Cache Rust stuff.