chore(deps): update mcr.microsoft.com/vscode/devcontainers/base docke…

…r tag to v1.2.1

.github/.devcontainer/Dockerfile.dev-container

@@ -1,7 +1,7 @@
 # Adapted from https://github.com/iloveitaly/asdf-devcontainer/blob/main/Dockerfile
 # This needs to be run at the root repo context, because it's caching dependencies
 # based on files at that level
-FROM mcr.microsoft.com/vscode/devcontainers/base:1.2.0-ubuntu24.04
+FROM mcr.microsoft.com/vscode/devcontainers/base:1.2.1-ubuntu24.04
 
 # needs to be declared *after* FROM to be available in shell scripts
 # renovate: datasource=github-releases depName=asdf packageName=asdf-vm/asdf