Update bazel files

BUILD

@@ -38,13 +38,13 @@ go_test(
     srcs = ["jwx_test.go"],
     deps = [
         ":jwx",
-        "//internal/ecutil",
         "//internal/jose",
         "//internal/json",
         "//internal/jwxtest",
         "//jwa",
         "//jwe",
         "//jwk",
+        "//jwk/ecdsa",
         "//jws",
         "@com_github_stretchr_testify//assert",
         "@com_github_stretchr_testify//require",

internal/ecutil/BUILD.bazel

@@ -5,7 +5,6 @@ go_library(
     srcs = ["ecutil.go"],
     importpath = "github.com/lestrrat-go/jwx/v3/internal/ecutil",
     visibility = ["//:__subpackages__"],
-    deps = ["//jwa"],
 )
 
 alias(

internal/jwxtest/BUILD.bazel

@@ -6,10 +6,10 @@ go_library(
     importpath = "github.com/lestrrat-go/jwx/v3/internal/jwxtest",
     visibility = ["//:__subpackages__"],
     deps = [
-        "//internal/ecutil",
         "//jwa",
         "//jwe",
         "//jwk",
+        "//jwk/ecdsa",
         "//jws",
         "//x25519",
         "@com_github_stretchr_testify//assert",

jwk/BUILD.bazel

@@ -34,6 +34,7 @@ go_library(
         "//internal/json",
         "//internal/pool",
         "//jwa",
+        "//jwk/ecdsa",
         "//x25519",
         "@com_github_lestrrat_go_blackmagic//:go_default_library",
         "@com_github_lestrrat_go_httprc//:go_default_library",
@@ -59,11 +60,11 @@ go_test(
     deps = [
         "//cert",
         "//internal/base64",
-        "//internal/ecutil",
         "//internal/jose",
         "//internal/json",
         "//internal/jwxtest",
         "//jwa",
+        "//jwk/ecdsa",
         "//jws",
         "//x25519",
         "@com_github_stretchr_testify//assert",

jwt/BUILD.bazel

@@ -46,12 +46,12 @@ go_test(
     ],
     embed = [":jwt"],
     deps = [
-        "//internal/ecutil",
         "//internal/json",
         "//internal/jwxtest",
         "//jwa",
         "//jwe",
         "//jwk",
+        "//jwk/ecdsa",
         "//jws",
         "//jwt/internal/types",
         "@com_github_stretchr_testify//assert",