Upgrade buggy stringdex decoder

Author: notriddle

Cargo.lock

@@ -5227,9 +5227,9 @@ dependencies = [
 
 [[package]]
 name = "stringdex"
-version = "0.0.1-alpha3"
+version = "0.0.1-alpha4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fab275e0c5212d8a4e4ac60652a5a0dd70d1e7a6341f948cd3f6a1fd294745e1"
+checksum = "2841fd43df5b1ff1b042e167068a1fe9b163dc93041eae56ab2296859013a9a0"
 dependencies = [
  "stacker",
 ]

src/librustdoc/Cargo.toml

@@ -21,7 +21,7 @@ rustdoc-json-types = { path = "../rustdoc-json-types" }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 smallvec = "1.8.1"
-stringdex = { version = "0.0.1-alpha3" }
+stringdex = { version = "0.0.1-alpha4" }
 tempfile = "3"
 threadpool = "1.8.1"
 tracing = "0.1"