chore: Pin taffy version (#34827)

Follow-up to 34817

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Cargo.lock

@@ -15936,9 +15936,9 @@ dependencies = [
 
 [[package]]
 name = "taffy"
-version = "0.5.2"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9cb893bff0f80ae17d3a57e030622a967b8dbc90e38284d9b4b1442e23873c94"
+checksum = "e8b61630cba2afd2c851821add2e1bb1b7851a2436e839ab73b56558b009035e"
 dependencies = [
  "arrayvec",
  "grid",

crates/gpui/Cargo.toml

@@ -121,7 +121,7 @@ smallvec.workspace = true
 smol.workspace = true
 strum.workspace = true
 sum_tree.workspace = true
-taffy = "0.5.1"
+taffy = "=0.5.1"
 thiserror.workspace = true
 util.workspace = true
 uuid.workspace = true