Update azure deps to 0.15

azure-kusto-data/Cargo.toml

@@ -15,11 +15,11 @@ categories = ["api-bindings"]
 [dependencies]
 arrow-array = { version = "42", optional = true }
 arrow-schema = { version = "42", optional = true }
-azure_core = { version = "0.13", features = [
+azure_core = { version = "0.15", features = [
     "enable_reqwest",
     "enable_reqwest_gzip",
 ] }
-azure_identity = "0.13.0"
+azure_identity = "0.15"
 async-trait = "0.1.64"
 async-convert = "1.0.0"
 bytes = "1.4"