Upgrade Abseil to LTS 20240116.2 to fix a bug identified in fuzz tests.

This moves ProxyWasm past Envoy Abseil 20230802.1.

Relevant ASAN failure:
```
external/com_google_absl/absl/strings/numbers.cc:199:73: runtime error: unsigned integer overflow: 0 - 8 cannot be represented in type 'unsigned long long'
    #0 0x562c730539f9 in absl::lts_20230802::(anonymous namespace)::EncodeTenThousand(unsigned int, char*) numbers.cc
    proxy-wasm#1 0x562c73053f25 in absl::lts_20230802::numbers_internal::FastIntToBuffer(unsigned long, char*)
```

Relevant Abseil rollback: abseil/abseil-cpp@e7858c7

Signed-off-by: Martijn Stevenson <[email protected]>

Author: martijneken

bazel/repositories.bzl

@@ -99,9 +99,9 @@ def proxy_wasm_cpp_host_repositories():
     maybe(
         http_archive,
         name = "com_google_absl",
-        sha256 = "987ce98f02eefbaf930d6e38ab16aa05737234d7afbab2d5c4ea7adbe50c28ed",
-        strip_prefix = "abseil-cpp-20230802.1",
-        urls = ["https://github.com/abseil/abseil-cpp/archive/20230802.1.tar.gz"],
+        sha256 = "733726b8c3a6d39a4120d7e45ea8b41a434cdacde401cba500f14236c49b39dc",
+        strip_prefix = "abseil-cpp-20240116.2",
+        urls = ["https://github.com/abseil/abseil-cpp/archive/20240116.2.tar.gz"],
     )
 
     maybe(