Bump actions/cache from 2.1.6 to 2.1.7

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.6 to 2.1.7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/cache/releases">actions/cache's releases</a>.</em></p>
<blockquote>
<h2>v2.1.7</h2>
<p>Support 10GB cache upload using the latest version <code>1.0.8</code> of <a href="https://www.npmjs.com/package/@actions/cache"><code>@actions/cache</code> </a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/cache/commit/937d24475381cd9c75ae6db12cb4e79714b926ed"><code>937d244</code></a> bumping up action version to 2.1.7 (<a href="https://github-redirect.dependabot.com/actions/cache/issues/683">#683</a>)</li>
<li><a href="https://github.com/actions/cache/commit/eb0698d1c508f8573fddfe25566f10a4b1344504"><code>eb0698d</code></a> Bumping up <code>@​actions/cache</code> version to 1.0.8 (<a href="https://github-redirect.dependabot.com/actions/cache/issues/682">#682</a>)</li>
<li><a href="https://github.com/actions/cache/commit/67b6d52d50609f6166e3ea1d8872aca3a4763bd2"><code>67b6d52</code></a> (R renv) Remove unused renv-cache-path variable (<a href="https://github-redirect.dependabot.com/actions/cache/issues/663">#663</a>)</li>
<li><a href="https://github.com/actions/cache/commit/92f67a482915a145e9372ed84b9e7f13538ecc69"><code>92f67a4</code></a> (R renv) Fix Renv package cache location in examples (<a href="https://github-redirect.dependabot.com/actions/cache/issues/660">#660</a>)</li>
<li><a href="https://github.com/actions/cache/commit/6bbe742add91b3db4abf110e742a967ec789958f"><code>6bbe742</code></a> Use existing check-dist implementation (<a href="https://github-redirect.dependabot.com/actions/cache/issues/618">#618</a>)</li>
<li><a href="https://github.com/actions/cache/commit/c9db520cf31dc27e42864cc3687b0d70284cc5fc"><code>c9db520</code></a> Create check-dist.yml (<a href="https://github-redirect.dependabot.com/actions/cache/issues/604">#604</a>)</li>
<li><a href="https://github.com/actions/cache/commit/10906ba9cd642bcc07f0f38a95a57e5c1361d156"><code>10906ba</code></a> Bump ws from 5.2.2 to 5.2.3 (<a href="https://github-redirect.dependabot.com/actions/cache/issues/610">#610</a>)</li>
<li><a href="https://github.com/actions/cache/commit/2ebdcff279bac9704c2b319b25ac54b63d6800c2"><code>2ebdcff</code></a> Add &quot;see more&quot; link to GHE-not-supported warning (<a href="https://github-redirect.dependabot.com/actions/cache/issues/609">#609</a>)</li>
<li><a href="https://github.com/actions/cache/commit/5807af2642b6ffc80df306359122fd0ff9b571b8"><code>5807af2</code></a> Fix bugs in example of how to use with pipenv (<a href="https://github-redirect.dependabot.com/actions/cache/issues/607">#607</a>)</li>
<li><a href="https://github.com/actions/cache/commit/0638051e9af2c23d10bb70fa9beffcad6cff9ce3"><code>0638051</code></a> Golang example tweak - add <code>go-build</code> path - rebuild page TOC (<a href="https://github-redirect.dependabot.com/actions/cache/issues/577">#577</a>)</li>
<li>See full diff in <a href="https://github.com/actions/cache/compare/v2.1.6...v2.1.7">compare view</a></li>
</ul>
</details>
<br />

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</details>

Fixes #1207

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/auto/pull/1207 from google:dependabot/github_actions/actions/cache-2.1.7 de7b13f4ab2cb2e0c6067af335f9ddacb1a21732
PiperOrigin-RevId: 414425323
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c9fb8ae..4471842 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@
       - name: 'Check out repository'
         uses: actions/checkout@v2.4.0
       - name: 'Cache local Maven repository'
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}
@@ -51,7 +51,7 @@
       - name: 'Check out repository'
         uses: actions/checkout@v2.4.0
       - name: 'Cache local Maven repository'
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}
@@ -80,7 +80,7 @@
       - name: 'Check out repository'
         uses: actions/checkout@v2.4.0
       - name: 'Cache local Maven repository'
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}