Update tycho to 4.0.8

Change-Id: Idc4c95e643ea46c2b2e33f9a60b0477185429588

org.eclipse.jgit.packaging/pom.xml

diff --git a/org.eclipse.jgit.packaging/pom.xml b/org.eclipse.jgit.packaging/pom.xml
index f7631ff7..cffd222 100644
--- a/org.eclipse.jgit.packaging/pom.xml
+++ b/org.eclipse.jgit.packaging/pom.xml
@@ -30,7 +30,7 @@
 
   <properties>
     <java.version>11</java.version>
-    <tycho-version>4.0.7</tycho-version>
+    <tycho-version>4.0.8</tycho-version>
     <target-platform>jgit-4.17</target-platform>
     <project.build.outputTimestamp>${git.commit.time}</project.build.outputTimestamp>
   </properties>