deps: update to pcre2 0.2.4

0.2.4 updates to PCRE2 10.42 and has a few other nice changes. For
example, when `utf` is enabled, the crate will always set the
PCRE2_MATCH_INVALID_UTF option. That means we no longer need to do
transcoding or UTF-8 validity checks.

Because of this, we actually get to remove one of the two uses of
`unsafe` in ripgrep's `main` program.

(This also updates a couple other dependencies for convenience.)

Cargo.lock

@@ -80,9 +80,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.15"
+version = "0.8.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"
+checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
 dependencies = [
  "cfg-if",
 ]
@@ -327,9 +327,9 @@ dependencies = [
 
 [[package]]
 name = "pcre2"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85b30f2f69903b439dd9dc9e824119b82a55bf113b29af8d70948a03c1b11ab1"
+checksum = "486aca7e74edb8cab09a48d461177f450a5cca3b55e61d139f7552190e2bbcf5"
 dependencies = [
  "libc",
  "log",
@@ -339,9 +339,9 @@ dependencies = [
 
 [[package]]
 name = "pcre2-sys"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dec30e5e9ec37eb8fbf1dea5989bc957fd3df56fbee5061aa7b7a99dbb37b722"
+checksum = "ae234f441970dbd52d4e29bee70f3b56ca83040081cb2b55b7df772b16e0b06e"
 dependencies = [
  "cc",
  "libc",
@@ -457,9 +457,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.96"
+version = "1.0.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "057d394a50403bcac12672b2b18fb387ab6d289d957dab67dd201875391e52f1"
+checksum = "bdf3bf93142acad5821c99197022e170842cdbc1c30482b98750c688c640842a"
 dependencies = [
  "itoa",
  "ryu",