* using common middleware for all http servers
* improved span handling in credential-proxy
* ensure increase in sequence number upon making deposit
* added explicit connect options for the db
* fixed further instances of incorrect span instrumentation
* batch deposit requests together to improve concurrency
* ignore cancelled requests
* updated credential proxy version to 0.1.4
* adjusted Dockerfile with new binary location
* log binary version on startup
* reduce default log level
* guard against unavaiable commit sha
* apply review comments: dont exit(0), instead just shutdown normally
* add skip_webhook parameter to obtain-async
* removing dead code