Update squid.conf
Update squid.conf

This is fixed by updating the `proxy.pac` file to allow CONNECTs to `swscan.apple.com`. This is expected to be updated automatically via the author of the original PAC file.

```
GoodDomains[i++] = ".apple.com";		// 2017-01-10, allow App Store CONNECT swscan.apple.com:443
```
essandess/osxfortress,essandess/osxfortress