Update settings.BQ_LOCATION

The EU region is actually a multi-region umbrella, and since 1st
February we have been charged for transferring data between regions
within the umbrella.  We do not need multi-region redundancy and so do
not need to incur this charge.

See #5472 for more.

Author: inglesp

openprescribing/openprescribing/settings/base.py

@@ -317,7 +317,8 @@
 
 # Other BQ settings
 BQ_DEFAULT_TABLE_EXPIRATION_MS = None
-BQ_LOCATION = "EU"
+# This must match the location of the ebmdatalab bucket in the ebmdatalab project (see #5472)
+BQ_LOCATION = "europe-west2"
 
 # Use django-anymail through mailgun for sending emails
 EMAIL_BACKEND = "anymail.backends.mailgun.EmailBackend"