Update alpine linux packages before building wheels

diff --git a/tools/build/wheel_linux_before_all.sh b/tools/build/wheel_linux_before_all.sh
index a670246273ef0d3afa0664e1cd100751333a2e54..45164cc0c1dea47806ea59953afb2e2787bb975a 100755 (executable)
--- a/tools/build/wheel_linux_before_all.sh
+++ b/tools/build/wheel_linux_before_all.sh
@@ -12,6 +12,7 @@ set -x
 case "$ID" in
     alpine)
         # tzdata is required for datetime tests.
+        apk update
         apk add --no-cache postgresql-dev tzdata
         ;;