Go back to httpd:2.4.37 to work around a DBM driver issue in 2.4

With versions above 2.4.37, e.g PUT requests fail with an internal
server error. The log says:

(20019)DSO load failed: AH00576: The DBM driver could not be loaded

This has been reported before, see
BytemarkHosting#8

Going to the most recent 2.4.39 seems to fix the issue for the OP but
not for me -- maybe because I'm building for ARM.

2.4/Dockerfile

@@ -1,4 +1,4 @@
-FROM httpd:alpine
+FROM httpd:2.4.37-alpine
 
 # These variables are inherited from the httpd:alpine image:
 # ENV HTTPD_PREFIX /usr/local/apache2