[bazel][libc] Add missing fenv dep for rint test template

For 4956118.

Author: rupprecht

utils/bazel/llvm-project-overlay/libc/test/src/math/BUILD.bazel

@@ -379,6 +379,7 @@ libc_support_library(
     deps = [
         "//libc:__support_fputil_fenv_impl",
         "//libc:__support_fputil_fp_bits",
+        "//libc:hdr_fenv_macros",
         "//libc:hdr_math_macros",
         "//libc/test/UnitTest:LibcUnitTest",
         "//libc/test/UnitTest:fp_test_helpers",