rustbook: Bump mdbook dependency

Cargo.lock

@@ -1405,30 +1405,18 @@ dependencies = [
 
 [[package]]
 name = "handlebars"
-version = "2.0.1"
+version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df044dd42cdb7e32f28557b661406fc0f2494be75199779998810dbc35030e0d"
+checksum = "ba758d094d31274eb49d15da6f326b96bf3185239a6359bf684f3d5321148900"
 dependencies = [
- "hashbrown 0.5.0",
- "lazy_static 1.4.0",
  "log",
  "pest",
  "pest_derive",
  "quick-error",
- "regex",
  "serde",
  "serde_json",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1de41fb8dba9714efd92241565cdff73f78508c95697dd56787d3cba27e2353"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "hashbrown"
 version = "0.6.2"
@@ -2055,9 +2043,9 @@ dependencies = [
 
 [[package]]
 name = "mdbook"
-version = "0.3.5"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "031bdd9d4893c983e2f69ebc4b59070feee8276a584c4aabdcb351235ea28016"
+checksum = "e7ec525f7ebccc2dd935c263717250cd37f9a4b264a77c5dbc950ea2734d8159"
 dependencies = [
  "ammonia",
  "chrono",
@@ -2785,9 +2773,9 @@ checksum = "6ddd112cca70a4d30883b2d21568a1d376ff8be4758649f64f973c6845128ad3"
 
 [[package]]
 name = "quick-error"
-version = "1.2.2"
+version = "1.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
+checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quine-mc_cluskey"
@@ -4800,7 +4788,7 @@ dependencies = [
  "core",
  "dlmalloc",
  "fortanix-sgx-abi",
- "hashbrown 0.6.2",
+ "hashbrown",
  "hermit-abi",
  "libc",
  "panic_abort",

src/tools/rustbook/Cargo.toml

@@ -23,6 +23,6 @@ codespan-reporting = { version = "0.5", optional = true }
 rustc-workspace-hack = "1.0.0"
 
 [dependencies.mdbook]
-version = "0.3.0"
+version = "0.3.7"
 default-features = false
 features = ["search"]