Describe the bug

Goose can't resolve relative paths for sub-recipes.

To Reproduce

1. Create a directory structure as follows:

❯ tree
.
├── recipe.yaml
└── sub-recipes
    └── terraform-init.yaml

2. Create recipe.yaml with relative paths to sub-recipes:

sub_recipes:
  - name: terraform init
    path: "./sub-recipes/terraform-init.yaml"

4. Attempt to use recipe.yaml.
5. Goose fails to resolve the relative paths specified for the sub_recipes as follows.

$ goose run --recipe $REPO_PATH/terraform-plan/recipe.yaml
thread 'main' panicked at crates/goose/src/agents/recipe_tools/sub_recipe_tools.rs:13:53:
called `Result::unwrap()` on an `Err` value: Failed to read recipe file sub-recipes/terraform-init.yaml: No such file or directory (os error 2)
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Expected behavior

Goose can resolve relative paths for sub-recipes from main recipe.

Please provide following information:

• OS & Arch: MacOS arm64
• Interface: CLI
• Version: v1.1.3

Additional context
Add any other context about the problem here.