chore: bump package to v0.15.0 (#131)

Author: pedroferreira1

docs/apidocs.yml

@@ -4,7 +4,7 @@ servers:
 info:
   title: tx-mining-service API
   description: This service is used to resolving transactions before propagating them into the network
-  version: 0.14.1
+  version: 0.15.0
 paths:
   /health-check:
     get:

pyproject.toml

@@ -5,7 +5,7 @@
 
 [tool.poetry]
 name = "tx-mining-service"
-version = "0.14.1"
+version = "0.15.0"
 package-mode = false
 description = "Service to mine transactions"
 authors = ["Hathor Team <contact@hathor.network>"]