chore(deps): bump golang.org/x/mod from 0.18.0 to 0.21.0 (#203)

Bumps [golang.org/x/mod](https://github.com/golang/mod) from 0.18.0 to
0.21.0.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/golang/mod/commit/46a3137daeac7bd5e64dc5971191e4a7207e6d89"><code>46a3137</code></a>
zip: set GIT_DIR in test when using bare repositories</li>
<li><a
href="https://github.com/golang/mod/commit/3afcd4e90a74c23515a9543f1e8fb68f05ecc8e0"><code>3afcd4e</code></a>
go.mod: set go version to 1.22.0</li>
<li><a
href="https://github.com/golang/mod/commit/b1d336cfca975f8b4b9c88e782fbe1911b2494b0"><code>b1d336c</code></a>
go.mod: update required go version to go1.22</li>
<li><a
href="https://github.com/golang/mod/commit/bc151c4e8ccc31931553c47d43e41c0efc246096"><code>bc151c4</code></a>
README: fix link to x/tools</li>
<li><a
href="https://github.com/golang/mod/commit/d1f873e3c1b2cf7231a30697aea158ae6cfdbb5f"><code>d1f873e</code></a>
modfile: fix Cleanup clobbering Line reference</li>
<li><a
href="https://github.com/golang/mod/commit/b56a28f8bd8379d47ee77b658799ce29061f6abe"><code>b56a28f</code></a>
modfile: Add support for tool lines</li>
<li><a
href="https://github.com/golang/mod/commit/79169e9d3645b69457c3c546644e29ba620146e7"><code>79169e9</code></a>
LICENSE: update per Google Legal</li>
<li><a
href="https://github.com/golang/mod/commit/d58be1cb16e62a9821b6dbd0157b8c7ff0b667ec"><code>d58be1c</code></a>
sumdb/tlog: set the hash of the empty tree according to RFC 6962</li>
<li><a
href="https://github.com/golang/mod/commit/232e49f555b427208443629fdd6870f71917c249"><code>232e49f</code></a>
Revert &quot;module: add COM0 and LPT0 to badWindowsNames&quot;</li>
<li>See full diff in <a
href="https://github.com/golang/mod/compare/v0.18.0...v0.21.0">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -21,7 +21,7 @@ require (
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.9.0
 	go.uber.org/mock v0.5.0
-	golang.org/x/mod v0.18.0
+	golang.org/x/mod v0.21.0
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.29.9
 	k8s.io/apimachinery v0.29.9

go.sum

@@ -207,8 +207,8 @@ golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e h1:+WEEuIdZHnUeJJmEUjyYC2gfU
 golang.org/x/exp v0.0.0-20220722155223-a9213eeb770e/go.mod h1:Kr81I6Kryrl9sr8s2FK3vxD90NdsKWRuOIl2O4CvYbA=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
-golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
+golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=