Bump prometheus and pretty-assertions versions

Author: phyber

CHANGELOG.md

@@ -3,6 +3,8 @@
 ## v0.15.1
 
   - Remove FreeBSD 11.4 from CI configuration as its no longer supported
+  - Update to [prometheus] 0.13.0
+  - Update to [pretty-assertions] 1.0
 
 ## v0.15.0
 

Cargo.lock

@@ -92,7 +92,7 @@ version = "0.3"
 default-features = false
 
 [dependencies.prometheus]
-version = "0.12.0"
+version = "0.13.0"
 default-features = false
 
 [dependencies.rand]
@@ -120,7 +120,7 @@ rustc_version = "0.4"
 actix-rt = "2.0"
 indoc = "1.0"
 lazy_static = "1.4"
-pretty_assertions = "0.7"
+pretty_assertions = "1.0"
 
 [dev-dependencies.users]
 version = "0.11"