ci: s/CCACHE_SIZE/CCACHE_MAXSIZE/.

The wrong environment variable was used in one place.

Author: Justin Pryzby <[email protected]>
Discussion: https://postgr.es/m/[email protected]

Author: anarazel

.cirrus.yml

@@ -457,7 +457,7 @@ task:
 
     # Use larger ccache cache, as this task compiles with multiple compilers /
     # flag combinations
-    CCACHE_SIZE: "1GB"
+    CCACHE_MAXSIZE: "1GB"
     CCACHE_DIR: "/tmp/ccache_dir"
 
     LINUX_CONFIGURE_FEATURES: *LINUX_CONFIGURE_FEATURES