rpc server: add rate limiting middleware (#3301)

Add RPC server rate limiting which can be utilized by the CLI
`--rpc-rate-limit <calls/per minute>`

Resolves first part of
https://github.com/paritytech/polkadot-sdk/issues/3028

//cc @PierreBesson @kogeler  you might be interested in this one

---------

Co-authored-by: James Wilson <james@jsdw.me>
Co-authored-by: Xiliang Chen <xlchen1291@gmail.com>

Cargo.lock

@@ -6187,6 +6187,24 @@ dependencies = [
  "testnet-parachains-constants",
 ]
 
+[[package]]
+name = "governor"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "821239e5672ff23e2a7060901fa622950bbd80b649cdaadd78d1c1767ed14eb4"
+dependencies = [
+ "cfg-if",
+ "dashmap",
+ "futures",
+ "futures-timer",
+ "no-std-compat",
+ "nonzero_ext",
+ "parking_lot 0.12.1",
+ "quanta",
+ "rand",
+ "smallvec",
+]
+
 [[package]]
 name = "group"
 version = "0.13.0"
@@ -7865,6 +7883,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "mach2"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19b955cdeb2a02b9117f121ce63aa52d08ade45de53e48fe6a38b39c10f6f709"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "macro_magic"
 version = "0.5.0"
@@ -8531,6 +8558,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "no-std-compat"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b93853da6d84c2e3c7d730d6473e8817692dd89be387eb01b94d7f108ecb5b8c"
+
 [[package]]
 name = "no-std-net"
 version = "0.6.0"
@@ -8781,6 +8814,12 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "nonzero_ext"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38bf9645c8b145698bb0b18a4637dcacbc421ea49bef2317e4fd8065a387cf21"
+
 [[package]]
 name = "normalize-line-endings"
 version = "0.3.0"
@@ -14352,6 +14391,22 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "quanta"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a17e662a7a8291a865152364c20c7abc5e60486ab2001e8ec10b24862de0b9ab"
+dependencies = [
+ "crossbeam-utils",
+ "libc",
+ "mach2",
+ "once_cell",
+ "raw-cpuid",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "web-sys",
+ "winapi",
+]
+
 [[package]]
 name = "quick-error"
 version = "1.2.3"
@@ -14512,6 +14567,15 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "raw-cpuid"
+version = "10.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c297679cb867470fa8c9f67dbba74a78d78e3e98d7cf2b08d6d71540f797332"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "rawpointer"
 version = "0.2.1"
@@ -16496,6 +16560,7 @@ name = "sc-rpc-server"
 version = "11.0.0"
 dependencies = [
  "futures",
+ "governor",
  "http",
  "hyper",
  "jsonrpsee",