Update wasmi to 0.20.0 in wasmtime-fuzzing (#5256)

* update wasmi to 0.20 in wasmtime-fuzzing

* add cargo-vet entries for wasmi_core 0.5.0 and wasmi 0.20.0

Cargo.lock

@@ -1744,12 +1744,6 @@ dependencies = [
  "autocfg 1.1.0",
 ]
 
-[[package]]
-name = "memory_units"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8452105ba047068f40ff7093dd1d9da90898e63dd61736462e9cdda6a90ad3c3"
-
 [[package]]
 name = "miette"
 version = "5.1.0"
@@ -3302,9 +3296,9 @@ dependencies = [
 
 [[package]]
 name = "wasmi"
-version = "0.19.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7428e8361e19d3affa9221ad674014b4a29381b07c755aab9b1cd4f74610221a"
+checksum = "01bf50edb2ea9d922aa75a7bf3c15e26a6c9e2d18c56e862b49737a582901729"
 dependencies = [
  "spin 0.9.4",
  "wasmi_arena",
@@ -3320,13 +3314,12 @@ checksum = "a1ea379cbb0b41f3a9f0bf7b47036d036aae7f43383d8cc487d4deccf40dee0a"
 
 [[package]]
 name = "wasmi_core"
-version = "0.4.0"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c9559a70c22f27793520b9e098baea45915088fb5093dd7041fcfe238b95d4e"
+checksum = "c5bf998ab792be85e20e771fe14182b4295571ad1d4f89d3da521c1bef5f597a"
 dependencies = [
  "downcast-rs",
  "libm",
- "memory_units",
  "num-traits",
 ]