fix: resolve Starlark compatibility and update dependencies

Fix build failures on Ubuntu CI and update deprecated configurations.

Starlark compatibility:
- Replace Python's next(iter()) with Starlark-compatible iteration
- Use explicit loop to get first dict key instead of built-ins
- Ensure compatibility with Bazel's Starlark implementation

Dependency updates:
- Update bazel_skylib from 1.5.0 to 1.7.1
- Update platforms from 0.0.8 to 0.0.10
- Update stardoc from 0.6.2 to 0.7.1
- Resolve version mismatch warnings in CI

Configuration fixes:
- Replace deprecated --local_ram_resources with --local_resources=memory=
- Replace deprecated --local_cpu_resources with --local_resources=cpu=
- Update .bazelrc to use modern Bazel resource flags

These changes ensure the rules work correctly across different platforms
and Bazel versions while maintaining backward compatibility.

Author: Rules WASM Component

.bazelrc

@@ -28,5 +28,5 @@ build:wasi --platforms=@rules_rust//rust/platform:wasm32-wasi
 
 # Performance
 build --jobs=auto
-build --local_ram_resources=HOST_RAM*.8
-build --local_cpu_resources=HOST_CPUS*.8
+build --local_resources=memory=HOST_RAM*.8
+build --local_resources=cpu=HOST_CPUS*.8

MODULE.bazel

@@ -8,12 +8,12 @@ module(
 
 # Dependencies for WebAssembly tooling
 bazel_dep(name = "rules_rust", version = "0.46.0")
-bazel_dep(name = "bazel_skylib", version = "1.5.0")
-bazel_dep(name = "platforms", version = "0.0.8")
+bazel_dep(name = "bazel_skylib", version = "1.7.1")
+bazel_dep(name = "platforms", version = "0.0.10")
 
 # Development dependencies
 bazel_dep(name = "buildifier_prebuilt", version = "6.4.0", dev_dependency = True)
-bazel_dep(name = "stardoc", version = "0.6.2", dev_dependency = True)
+bazel_dep(name = "stardoc", version = "0.7.1", dev_dependency = True)
 
 # Rust toolchain setup
 rust = use_extension("@rules_rust//rust:extensions.bzl", "rust")

wac/wac_compose.bzl

@@ -155,8 +155,13 @@ def _generate_composition(components):
 
     # Export first component as main
     if components:
-        first_comp = next(iter(components))
-        lines.append("export {} as main;".format(first_comp))
+        # Get first key from dict (Starlark doesn't have next/iter)
+        first_comp = None
+        for key in components:
+            first_comp = key
+            break
+        if first_comp:
+            lines.append("export {} as main;".format(first_comp))
 
     return "\n".join(lines)