Update picotool dependency to 2.1.0 (not strictly required, but we prefer people to be on the latest)

Author: kilograham

MODULE.bazel

@@ -6,7 +6,7 @@ module(
 bazel_dep(name = "platforms", version = "0.0.9")
 bazel_dep(name = "bazel_skylib", version = "1.6.1")
 bazel_dep(name = "rules_python", version = "0.36.0")
-bazel_dep(name = "picotool", version = "2.0.0")
+bazel_dep(name = "picotool", version = "2.1.0")
 bazel_dep(name = "rules_cc", version = "0.0.10")
 
 http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

tools/CMakeLists.txt

@@ -101,7 +101,7 @@ endfunction()
 
 # Check picotool is installed, or download and build it if not installed
 function(pico_init_picotool)
-    set(picotool_VERSION_REQUIRED 2.0.0)
+    set(picotool_VERSION_REQUIRED 2.1.0)
     if (NOT TARGET picotool AND NOT DEFINED picotool_FOUND)
         # Build path of local install dir
         if (DEFINED ENV{PICOTOOL_FETCH_FROM_GIT_PATH} AND (NOT PICOTOOL_FETCH_FROM_GIT_PATH))