ARROW-3167: [CI] Limit clcache cache size
ARROW-3167: [CI] Limit clcache cache size

Prevent cache setup and teardown from ballooning too much.

Author: Antoine Pitrou <antoine@python.org>

Closes #2510 from pitrou/ARROW-3167-clcache-size and squashes the following commits:

4e27c7dd <Antoine Pitrou> ARROW-3167:  Limit clcache cache size

kou/arrow,cpcloud/arrow,renesugar/arrow,laurentgo/arrow,xhochy/arrow,icexelloss/arrow,tebeka/arrow,wesm/arrow,majetideepak/arrow,apache/arrow,tebeka/arrow,renesugar/arrow,majetideepak/arrow,kou/arrow,majetideepak/arrow,icexelloss/arrow,majetideepak/arrow,cpcloud/arrow,pcmoritz/arrow,pcmoritz/arrow,icexelloss/arrow,pcmoritz/arrow,tebeka/arrow,itaiin/arrow,renesugar/arrow,wesm/arrow,itaiin/arrow,icexelloss/arrow,apache/arrow,cpcloud/arrow,majetideepak/arrow,wesm/arrow,itaiin/arrow,kou/arrow,kou/arrow,itaiin/arrow,majetideepak/arrow,renesugar/arrow,itaiin/arrow,majetideepak/arrow,pcmoritz/arrow,apache/arrow,laurentgo/arrow,laurentgo/arrow,majetideepak/arrow,majetideepak/arrow,renesugar/arrow,apache/arrow,apache/arrow,kou/arrow,pcmoritz/arrow,wesm/arrow,apache/arrow,wesm/arrow,majetideepak/arrow,apache/arrow,cpcloud/arrow,apache/arrow,cpcloud/arrow,cpcloud/arrow,xhochy/arrow,tebeka/arrow,cpcloud/arrow,renesugar/arrow,xhochy/arrow,apache/arrow,itaiin/arrow,itaiin/arrow,laurentgo/arrow,pcmoritz/arrow,wesm/arrow,itaiin/arrow,apache/arrow,majetideepak/arrow,renesugar/arrow,kou/arrow,laurentgo/arrow,renesugar/arrow,laurentgo/arrow,kou/arrow,apache/arrow,pcmoritz/arrow,wesm/arrow,laurentgo/arrow,icexelloss/arrow,kou/arrow,renesugar/arrow,xhochy/arrow,icexelloss/arrow,wesm/arrow,tebeka/arrow,tebeka/arrow,kou/arrow,kou/arrow,icexelloss/arrow,icexelloss/arrow,itaiin/arrow,xhochy/arrow,kou/arrow,wesm/arrow,kou/arrow,itaiin/arrow,xhochy/arrow,icexelloss/arrow,wesm/arrow,renesugar/arrow,cpcloud/arrow,itaiin/arrow,apache/arrow,xhochy/arrow,pcmoritz/arrow,cpcloud/arrow,itaiin/arrow,xhochy/arrow,itaiin/arrow,majetideepak/arrow,tebeka/arrow,kou/arrow,wesm/arrow,xhochy/arrow,icexelloss/arrow,wesm/arrow,apache/arrow,icexelloss/arrow,xhochy/arrow,laurentgo/arrow,laurentgo/arrow,majetideepak/arrow,pcmoritz/arrow,itaiin/arrow,pcmoritz/arrow,laurentgo/arrow,tebeka/arrow,xhochy/arrow,cpcloud/arrow,renesugar/arrow,laurentgo/arrow,laurentgo/arrow,xhochy/arrow,icexelloss/arrow,cpcloud/arrow,majetideepak/arrow,pcmoritz/arrow,pcmoritz/arrow,renesugar/arrow,wesm/arrow,majetideepak/arrow,cpcloud/arrow,icexelloss/arrow,laurentgo/arrow,cpcloud/arrow,renesugar/arrow,pcmoritz/arrow,xhochy/arrow,pcmoritz/arrow,kou/arrow,itaiin/arrow,cpcloud/arrow,apache/arrow,renesugar/arrow,xhochy/arrow,xhochy/arrow,icexelloss/arrow,laurentgo/arrow,wesm/arrow,renesugar/arrow,tebeka/arrow,laurentgo/arrow,tebeka/arrow,pcmoritz/arrow