fix(infra): pin base64ct and postgres-types to edition 2021 versions

base64ct 1.8.3 and postgres-types 0.2.13 require edition 2024 (Rust 1.85+),
which is not available in nixpkgs-24.11 (Rust 1.83). Downgrade:
- base64ct 1.8.3 → 1.7.3
- postgres-types 0.2.13 → 0.2.9

Verified: cargo +1.83.0 build --release succeeds.
Co-Authored-By: Allaun Silverfox <bigdataiscoming+9i37y6j2@protonmail.com>

4-Infrastructure/infra/embedded_surface/rs-surface/Cargo.lock

@@ -155,9 +155,9 @@ checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
 name = "base64ct"
-version = "1.8.3"
+version = "1.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2af50177e190e07a26ab74f8b1efbfe2ef87da2116221318cb1c2e82baf7de06"
+checksum = "89e25b6adfb930f02d1981565a6e5d9c547ac15a96606256d3b59040e5cd4ca3"
 
 [[package]]
 name = "bcder"
@@ -819,14 +819,14 @@ dependencies = [
 
 [[package]]
 name = "postgres-types"
-version = "0.2.13"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dc729a129e682e8d24170cd30ae1aa01b336b096cbb56df6d534ffec133d186"
+checksum = "613283563cd90e1dfc3518d548caee47e0e725455ed619881f5cf21f36de4b48"
 dependencies = [
  "bytes",
  "fallible-iterator",
  "postgres-protocol",
- "serde_core",
+ "serde",
  "serde_json",
 ]