[build/sysroots] Cleanup targets being built for "target" cfg, when t…

…hey should be built for "exec".

Summary: There are some targets that were being built for the "target" cfg unnecessarily. This diff makes sure they're built for the "exec" cfg.

Test Plan: Should be no functional changes. Relying on existing tests.

Reviewers: zasgar, michelle, vihang

Reviewed By: zasgar, vihang

Signed-off-by: James Bartlett <[email protected]>

Differential Revision: https://phab.corp.pixielabs.ai/D12855

GitOrigin-RevId: cd3f0ad3cac4df670442edebd359dddb536333e7

bazel/licenses.bzl

@@ -42,7 +42,7 @@ fetch_licenses = rule(
     implementation = _fetch_licenses_impl,
     attrs = dict({
         "disallow_missing": attr.bool(),
-        "fetch_tool": attr.label(mandatory = True, allow_single_file = True),
+        "fetch_tool": attr.label(mandatory = True, allow_single_file = True, cfg = "exec"),
         "manual_licenses": attr.label(mandatory = True, allow_single_file = True),
         "out_found": attr.output(mandatory = True),
         "out_missing": attr.output(),

bazel/proto_compile.bzl

@@ -141,6 +141,9 @@ def pl_py_grpc_library(name, proto, deps = [], **kwargs):
         name = codegen_py_grpc_target,
         srcs = [proto],
         deps = [codegen_py_pb_target],
+        target_compatible_with = [
+            "//bazel/cc_toolchains:is_exec_true",
+        ],
     )
     py_library(
         name = name,
@@ -201,6 +204,7 @@ colocate_python_files = rule(
             mandatory = True,
             providers = [PyInfo],
             allow_files = True,
+            cfg = "exec",
         ),
         protos_include_dir = attr.string(),
     ),