Update petgraph requirement from 0.7 to 0.8 (#19878)

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crates/bevy_animation/Cargo.toml

@@ -31,7 +31,7 @@ bevy_platform = { path = "../bevy_platform", version = "0.17.0-dev", default-fea
 ] }
 
 # other
-petgraph = { version = "0.7", features = ["serde-1"] }
+petgraph = { version = "0.8", features = ["serde-1"] }
 ron = "0.10"
 serde = "1"
 blake3 = { version = "1.0" }

crates/bevy_reflect/Cargo.toml

@@ -100,7 +100,7 @@ smallvec = { version = "1.11", default-features = false, optional = true }
 glam = { version = "0.29.3", default-features = false, features = [
   "serde",
 ], optional = true }
-petgraph = { version = "0.7", features = ["serde-1"], optional = true }
+petgraph = { version = "0.8", features = ["serde-1"], optional = true }
 smol_str = { version = "0.2.0", default-features = false, features = [
   "serde",
 ], optional = true }