graph: Bump default max API version to 0.0.7

graph/src/data/subgraph/api_version.rs

@@ -12,6 +12,7 @@ pub const API_VERSION_0_0_2: Version = Version::new(0, 0, 2);
 /// different API versions if at least one of them is equal to or higher than `0.0.5`.
 pub const API_VERSION_0_0_5: Version = Version::new(0, 0, 5);
 
+// Adds two new fields to the Transaction object: nonce and input
 pub const API_VERSION_0_0_6: Version = Version::new(0, 0, 6);
 
 /// Enables event handlers to require transaction receipts in the runtime.
@@ -35,7 +36,7 @@ lazy_static! {
     pub static ref MAX_API_VERSION: semver::Version = std::env::var("GRAPH_MAX_API_VERSION")
         .ok()
         .and_then(|api_version_str| semver::Version::parse(&api_version_str).ok())
-        .unwrap_or(semver::Version::new(0, 0, 6));
+        .unwrap_or(API_VERSION_0_0_7);
 }
 
 #[derive(Clone, PartialEq, Debug)]