Update toml dependency

Author: ehuss

Cargo.toml

@@ -60,7 +60,7 @@ strip-ansi-escapes = "0.1.0"
 tar = { version = "0.4.26", default-features = false }
 tempfile = "3.0"
 termcolor = "1.1"
-toml = "0.5.3"
+toml = "0.5.7"
 unicode-xid = "0.2.0"
 url = "2.0"
 walkdir = "2.2"

tests/testsuite/build.rs

@@ -196,7 +196,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  invalid number at line 3 column 23
+  invalid TOML value, did you mean to use a quoted string? at line 3 column 23
 ",
         )
         .run();
@@ -216,7 +216,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  invalid number at line 1 column 5
+  invalid TOML value, did you mean to use a quoted string? at line 1 column 5
 ",
         )
         .run();

tests/testsuite/config.rs

@@ -794,7 +794,7 @@ expected a list, but found a integer for `l3` in [..]/.cargo/config",
     assert_error(
         config.get::<L>("bad-env").unwrap_err(),
         "error in environment variable `CARGO_BAD_ENV`: \
-         could not parse TOML list: invalid number at line 1 column 8",
+         could not parse TOML list: invalid TOML value, did you mean to use a quoted string? at line 1 column 8",
     );
 
     // Try some other sequence-like types.