Bump bouncycastleVersion from 1.79 to 1.80 (#2759)

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Bumps `bouncycastleVersion` from 1.79 to 1.80.
Updates `org.bouncycastle:bcprov-jdk18on` from 1.79 to 1.80
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/bcgit/bc-java/blob/main/docs/releasenotes.html">org.bouncycastle:bcprov-jdk18on's
changelog</a>.</em></p>
<blockquote>
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<p><!-- raw HTML omitted --><!-- raw HTML omitted -->2.1.1 Version<!--
raw HTML omitted --><!-- raw HTML omitted -->
Release: 1.80<!-- raw HTML omitted -->
Date:      2025, 14th January.</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/bcgit/bc-java/commits">compare view</a></li>
</ul>
</details>
<br />

Updates `org.bouncycastle:bcpkix-jdk18on` from 1.79 to 1.80
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/bcgit/bc-java/blob/main/docs/releasenotes.html">org.bouncycastle:bcpkix-jdk18on's
changelog</a>.</em></p>
<blockquote>
<!-- raw HTML omitted -->
<!-- raw HTML omitted -->
<!-- raw HTML omitted -->
<p><!-- raw HTML omitted --><!-- raw HTML omitted -->2.1.1 Version<!--
raw HTML omitted --><!-- raw HTML omitted -->
Release: 1.80<!-- raw HTML omitted -->
Date:      2025, 14th January.</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/bcgit/bc-java/commits">compare view</a></li>
</ul>
</details>
<br />


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build.gradle

@@ -19,7 +19,7 @@ ext {
     logbackVersion = "1.5.7"
     imageioVersion = "3.12.0"
     lombokVersion = "1.18.36"
-    bouncycastleVersion = "1.79"
+    bouncycastleVersion = "1.80"
     springSecuritySamlVersion = "6.4.2"
     openSamlVersion = "4.3.2"
 }