Upgrade prometheus crate to fix security warning (#5747)

Upgrade the `prometheus` crate to bump the version of the protobuf
crate, which is flagged by `cargo audit` as having a security issue
RUSTSEC-2024-0437.

VPN-3074

Cargo.lock

@@ -7804,9 +7804,9 @@ dependencies = [
 
 [[package]]
 name = "prometheus"
-version = "0.13.4"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d33c28a30771f7f96db69893f78b857f7450d7e0237e9c8fc6427a81bae7ed1"
+checksum = "3ca5326d8d0b950a9acd87e6a3f94745394f62e4dae1b1ee22b2bc0c394af43a"
 dependencies = [
  "cfg-if",
  "fnv",
@@ -7814,7 +7814,7 @@ dependencies = [
  "memchr",
  "parking_lot",
  "protobuf",
- "thiserror 1.0.69",
+ "thiserror 2.0.12",
 ]
 
 [[package]]
@@ -7874,9 +7874,23 @@ dependencies = [
 
 [[package]]
 name = "protobuf"
-version = "2.28.0"
+version = "3.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "106dd99e98437432fed6519dedecfade6a06a73bb7b2a1e019fdd2bee5778d94"
+checksum = "d65a1d4ddae7d8b5de68153b48f6aa3bba8cb002b243dbdbc55a5afbc98f99f4"
+dependencies = [
+ "once_cell",
+ "protobuf-support",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "protobuf-support"
+version = "3.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e36c2f31e0a47f9280fb347ef5e461ffcd2c52dd520d8e216b52f93b0b0d7d6"
+dependencies = [
+ "thiserror 1.0.69",
+]
 
 [[package]]
 name = "psl"

Cargo.toml

@@ -354,7 +354,7 @@ wasm-bindgen-test = "0.3.49"
 x25519-dalek = "2.0.0"
 zeroize = "1.7.0"
 
-prometheus = { version = "0.13.0" }
+prometheus = { version = "0.14.0" }
 
 # coconut/DKG related
 # unfortunately until https://github.com/zkcrypto/bls12_381/issues/10 is resolved, we have to rely on the fork