[master] 801d91066 circleci: Stick alpine to 3.13 for now

[Dridi Boukelmoune]

commit 801d91066960268f042cf74060780afb9390603b
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Wed Jun 30 16:54:34 2021 +0200

    circleci: Stick alpine to 3.13 for now
    
    Until we figure out how to work around the build failure since "latest"
    bumped to 3.14.

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 61342131f..4b5ddc711 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -323,7 +323,8 @@ workflows:
       - distcheck:
           name: distcheck_alpine
           dist: alpine
-          release: "latest"
+          release: "3.13"
+          #release: "latest"
           extra_conf: --disable-developer-warnings --disable-dependency-tracking
       - distcheck:
           name: distcheck_archlinux