build(deps): Bump base64 from 0.21.2 to 0.21.3 in /rust (#1960)

Bumps [base64](https://github.com/marshallpierce/rust-base64) from
0.21.2 to 0.21.3.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/marshallpierce/rust-base64/blob/master/RELEASE-NOTES.md">base64's
changelog</a>.</em></p>
<blockquote>
<h1>0.21.3</h1>
<ul>
<li>Implement <code>source</code> instead of <code>cause</code> on Error
types</li>
<li>Roll back MSRV to 1.48.0 so Debian can continue to live in a time
warp</li>
<li>Slightly faster chunked encoding for short inputs</li>
<li>Decrease binary size</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="6f9f734815"><code>6f9f734</code></a>
v0.21.3</li>
<li><a
href="a7e1f473d8"><code>a7e1f47</code></a>
Merge pull request <a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/224">#224</a>
from marshallpierce/mina86-a</li>
<li><a
href="96b29d848e"><code>96b29d8</code></a>
Improve comments and increase test paranoia.</li>
<li><a
href="2b5112fcc5"><code>2b5112f</code></a>
Merge branch 'master' into mina86-a</li>
<li><a
href="a3f692b4ec"><code>a3f692b</code></a>
Merge pull request <a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/250">#250</a>
from marshallpierce/mp/esw-test</li>
<li><a
href="a589c62cb0"><code>a589c62</code></a>
Add a test to EncoderStringWriter</li>
<li><a
href="70d2b53781"><code>70d2b53</code></a>
Merge pull request <a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/249">#249</a>
from marshallpierce/mp/cleanup</li>
<li><a
href="f2a06ddf4b"><code>f2a06dd</code></a>
Misc cleanups</li>
<li><a
href="b00174920a"><code>b001749</code></a>
Merge pull request <a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/246">#246</a>
from tcharding/08-09-roll-back-msrv</li>
<li><a
href="d2e75a4dc0"><code>d2e75a4</code></a>
Merge pull request <a
href="https://redirect.github.com/marshallpierce/rust-base64/issues/241">#241</a>
from EFanZh/optimize-generic-functions</li>
<li>Additional commits viewable in <a
href="https://github.com/marshallpierce/rust-base64/compare/v0.21.2...v0.21.3">compare
view</a></li>
</ul>
</details>
<br />


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rust/Cargo.lock

@@ -415,9 +415,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.2"
+version = "0.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d"
+checksum = "414dcefbc63d77c526a76b3afcf6fbb9b5e2791c19c3aa2297733208750c6e53"
 
 [[package]]
 name = "base64ct"
@@ -1810,7 +1810,7 @@ dependencies = [
  "android_logger",
  "async-trait",
  "backoff",
- "base64 0.21.2",
+ "base64 0.21.3",
  "boringtun",
  "chrono",
  "futures",
@@ -2269,7 +2269,7 @@ checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
 name = "phoenix-channel"
 version = "0.1.0"
 dependencies = [
- "base64 0.21.2",
+ "base64 0.21.3",
  "futures",
  "rand_core",
  "serde",
@@ -2597,7 +2597,7 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "axum",
- "base64 0.21.2",
+ "base64 0.21.3",
  "bytecodec",
  "bytes",
  "clap",
@@ -2793,7 +2793,7 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2d3987094b1d07b653b7dfdc3f70ce9a1da9c51ac18c1b06b662e4f9a0e9f4b2"
 dependencies = [
- "base64 0.21.2",
+ "base64 0.21.3",
 ]
 
 [[package]]
@@ -3137,7 +3137,7 @@ name = "stun"
 version = "0.4.4"
 source = "git+https://github.com/firezone/webrtc?rev=672e728#672e728b2386e17d80c210a8be6ec364916ffb17"
 dependencies = [
- "base64 0.21.2",
+ "base64 0.21.3",
  "crc",
  "lazy_static",
  "md-5",
@@ -3648,7 +3648,7 @@ version = "0.6.1"
 source = "git+https://github.com/firezone/webrtc?rev=672e728#672e728b2386e17d80c210a8be6ec364916ffb17"
 dependencies = [
  "async-trait",
- "base64 0.21.2",
+ "base64 0.21.3",
  "futures",
  "log",
  "md-5",

rust/phoenix-channel/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2021"
 [dependencies]
 tokio-tungstenite = { version = "0.19.0", features = ["rustls-tls-native-roots"] }
 futures = "0.3.28"
-base64 = "0.21.2"
+base64 = "0.21.3"
 serde = { version = "1.0.183", features = ["derive"] }
 tracing = "0.1.37"
 rand_core = "0.6.4"

rust/relay/Cargo.toml

@@ -19,7 +19,7 @@ tracing-stackdriver = "0.7.2"
 env_logger = "0.10.0"
 bytes = "1.4.0"
 sha2 = "0.10.6"
-base64 = "0.21.0"
+base64 = "0.21.3"
 once_cell = "1.17.1"
 proptest = { version = "1.2.0", optional = true }
 test-strategy = "0.3.1"