Bump once_cell from 1.7.2 to 1.8.0 (#1318)

Cargo.lock

@@ -804,9 +804,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.7.2"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
+checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
 
 [[package]]
 name = "oorandom"

boa/Cargo.toml

@@ -39,7 +39,7 @@ fast-float = "0.2.0"
 
 # Optional Dependencies
 measureme = { version = "9.1.2", optional = true }
-once_cell = { version = "1.7.2", optional = true }
+once_cell = { version = "1.8.0", optional = true }
 
 [dev-dependencies]
 criterion = "0.3.4"

boa_tester/Cargo.toml

@@ -18,7 +18,7 @@ serde_yaml = "0.8.17"
 serde_json = "1.0.64"
 bitflags = "1.2.1"
 regex = "1.5.4"
-once_cell = "1.7.2"
+once_cell = "1.8.0"
 colored = "2.0.0"
 fxhash = "0.2.1"
 git2 = "0.13.20"