Update base64 and typemap_rev dependencies to their latest versio…

…ns (#989)

Cargo.toml

@@ -17,6 +17,7 @@ tracing = "0.1"
 tracing-futures = "0.2"
 serde_json = "1"
 async-trait = "0.1"
+futures = "0.3"
 
 [dependencies.static_assertions]
 optional = true
@@ -41,7 +42,7 @@ version = "0.6.0"
 
 [dependencies.base64]
 optional = true
-version = "0.12"
+version = "0.13"
 
 [dependencies.byteorder]
 optional = true
@@ -73,7 +74,7 @@ version = "0.8"
 
 [dependencies.typemap_rev]
 optional = true
-version = "0.1.2"
+version = "0.1.3"
 
 [dependencies.url]
 optional = true
@@ -92,9 +93,6 @@ version = "0.2"
 default-features = false
 features = ["fs", "macros", "rt-core", "sync", "time", "udp", "process"]
 
-[dependencies.futures]
-version = "0.3"
-
 [dev-dependencies.http_crate]
 version = "0.2"
 package = "http"