Merge pull request #3087 from image-rs/syn-3

Update cargo deny

Author: 197g

deny.toml

@@ -42,9 +42,5 @@ multiple-versions = "deny"
 wildcards = "allow" # at least until https://github.com/EmbarkStudios/cargo-deny/issues/241 is fixed
 deny = []
 skip = [
-    { name = "bitflags" },   # Some deps depend on 1.3.2 while others on 2.6.0
-    { name = "hashbrown" },  # Some deps depend on 0.13.2 while others on 0.14.5
-    { name = "zune-core" },  # Some deps depend on 0.4.12 while others on 0.5.0
-    { name = "zune-jpeg" },  # Some deps depend on 0.4.21 while others on 0.5.1
-    { name = "winnow" },     # Some deps depend on 0.7.15 while others on 1.0.0
+    { name = "syn" },        # Some deps depend on 2 while others use 3 (e.g. newer serde-derive versions)
 ]