Add aws_http_client and bedrock crates (#25490)

This PR adds new `aws_http_client` and `bedrock` crates for supporting
AWS Bedrock.

Pulling out of https://github.com/zed-industries/zed/pull/21092 to make
it easier to land.

Release Notes:

- N/A

---------

Co-authored-by: Shardul Vaidya <cam.v737@gmail.com>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>

Cargo.lock

@@ -1269,6 +1269,30 @@ dependencies = [
  "uuid",
 ]
 
+[[package]]
+name = "aws-sdk-bedrockruntime"
+version = "1.74.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6938541d1948a543bca23303fec4cff9c36bf0e63b8fa3ae1b337bcb9d5b81af"
+dependencies = [
+ "aws-credential-types",
+ "aws-runtime",
+ "aws-smithy-async",
+ "aws-smithy-eventstream",
+ "aws-smithy-http",
+ "aws-smithy-json",
+ "aws-smithy-runtime",
+ "aws-smithy-runtime-api",
+ "aws-smithy-types",
+ "aws-types",
+ "bytes 1.10.0",
+ "fastrand 2.3.0",
+ "http 0.2.12",
+ "once_cell",
+ "regex-lite",
+ "tracing",
+]
+
 [[package]]
 name = "aws-sdk-kinesis"
 version = "1.61.0"
@@ -1598,6 +1622,17 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "aws_http_client"
+version = "0.1.0"
+dependencies = [
+ "aws-smithy-runtime-api",
+ "aws-smithy-types",
+ "futures 0.3.31",
+ "http_client",
+ "tokio",
+]
+
 [[package]]
 name = "axum"
 version = "0.6.20"
@@ -1727,6 +1762,22 @@ version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
 
+[[package]]
+name = "bedrock"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "aws-sdk-bedrockruntime",
+ "aws-smithy-types",
+ "futures 0.3.31",
+ "schemars",
+ "serde",
+ "serde_json",
+ "strum",
+ "thiserror 1.0.69",
+ "tokio",
+]
+
 [[package]]
 name = "bigdecimal"
 version = "0.4.7"