Bump rand from 0.8.3 to 0.8.4

Bumps [rand](https://github.com/rust-random/rand) from 0.8.3 to 0.8.4.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-random/rand/compare/0.8.3...0.8.4)

---
updated-dependencies:
- dependency-name: rand
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -1639,7 +1639,7 @@ dependencies = [
  "pbkdf2",
  "priority-queue",
  "protobuf",
- "rand 0.8.3",
+ "rand 0.8.4",
  "serde",
  "serde_json",
  "sha-1",
@@ -1901,7 +1901,7 @@ dependencies = [
  "notify-rust",
  "pancurses",
  "platform-dirs",
- "rand 0.8.3",
+ "rand 0.8.4",
  "regex",
  "reqwest 0.11.3",
  "rspotify",
@@ -2065,7 +2065,7 @@ dependencies = [
  "autocfg 1.0.1",
  "num-integer",
  "num-traits",
- "rand 0.8.3",
+ "rand 0.8.4",
 ]
 
 [[package]]
@@ -2597,9 +2597,9 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ef9e7e66b4468674bfcb0c81af8b7fa0bb154fa9f28eb840da5c447baeb8d7e"
+checksum = "2e7573632e6454cf6b99d7aac4ccca54be06da05aca2ef7423d22d27d4d4bcd8"
 dependencies = [
  "libc",
  "rand_chacha 0.3.0",
@@ -3314,7 +3314,7 @@ checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "rand 0.8.3",
+ "rand 0.8.4",
  "redox_syscall 0.2.8",
  "remove_dir_all",
  "winapi 0.3.9",