Endorsements: add Open Collective

Co-authored-by: Chad Whitacre <[email protected]>

public/images/endorsers/opensourcecollective.png.license

@@ -0,0 +1,2 @@
+© 2024 Open Collective
+SPDX-License-Identifier: LicenseRef-Restricted

src/components/EndorsementList.astro

@@ -19,7 +19,16 @@ const { full } = Astro.props;
     sourceUrl="https://x.com/ThePHPF/status/1843638789681615096"
     hidden={!full}
   >
-  <p>Every modern business—whether they know it or not—relies on Open Source software, yet few give back. The PHP Foundation celebrates the #OpenSourcePledge, whose members have committed to correcting this imbalance. Together, we can build a stronger, more resilient OSS ecosystem. 🌱</p>
+    <p>Every modern business—whether they know it or not—relies on Open Source software, yet few give back. The PHP Foundation celebrates the #OpenSourcePledge, whose members have committed to correcting this imbalance. Together, we can build a stronger, more resilient OSS ecosystem. 🌱</p>
+  </Endorsement>
+  <Endorsement
+    name="Open Source Collective"
+    handle="@opensourcecoll"
+    imageUrl="/images/endorsers/opensourcecollective.png"
+    sourceUrl="https://blog.opencollective.com/why-the-open-source-pledge-is-both-relevant-and-timely/"
+    hidden={!full}
+  >
+    <p>The Open Source Pledge's simple message is incredibly important. Companies: pay your share.</p>
   </Endorsement>
   <Endorsement
     name="Raymmar"