Fixed the assign value to the latestCommitTime:

Replaced the method Instant.ofEpochMilli() with the method
Instant.ofEpochSecond() because RevCommit.getCommitTime()
return the number of the seconds from epoch.

extensions/info/deployment/src/main/java/io/quarkus/info/deployment/InfoProcessor.java

@@ -85,7 +85,7 @@ void gitInfo(InfoBuildTimeConfig config,
             Map<String, Object> commit = new LinkedHashMap<>();
             String latestCommitId = latestCommit.getName();
             commit.put("id", latestCommitId);
-            String latestCommitTime = formatDate(Instant.ofEpochMilli(latestCommit.getCommitTime()), ZoneId.systemDefault());
+            String latestCommitTime = formatDate(Instant.ofEpochSecond(latestCommit.getCommitTime()), ZoneId.systemDefault());
             commit.put("time", latestCommitTime);
 
             if (addFullInfo) {