Update charmcraft.yaml build tools (#477)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

charmcraft.yaml

@@ -29,7 +29,7 @@ parts:
       PIP_BREAK_SYSTEM_PACKAGES=true python3 -m pip install --user --upgrade pip==25.0  # renovate: charmcraft-pip-latest
 
       # Use uv to install poetry so that a newer version of Python can be installed if needed by poetry
-      curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.5.25/uv-installer.sh | sh  # renovate: charmcraft-uv-latest
+      curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releases/download/0.5.26/uv-installer.sh | sh  # renovate: charmcraft-uv-latest
       # poetry 2.0.0 requires Python >=3.9
       if ! "$HOME/.local/bin/uv" python find '>=3.9'
       then
@@ -77,7 +77,7 @@ parts:
       # rpds-py (Python package) >=0.19.0 requires rustc >=1.76, which is not available in the
       # Ubuntu 22.04 archive. Install rustc and cargo using rustup instead of the Ubuntu archive
       rustup set profile minimal
-      rustup default 1.84.0  # renovate: charmcraft-rust-latest
+      rustup default 1.84.1  # renovate: charmcraft-rust-latest
 
       craftctl default
       # Include requirements.txt in *.charm artifact for easier debugging