simplify timeout configuration and increase a bit the value

Signed-off-by: olivier lamy <olamy@apache.org>
diff --git a/.github/workflows/maven-ci.yml b/.github/workflows/maven-ci.yml
index 50cd9fb..23cd6ac 100644
--- a/.github/workflows/maven-ci.yml
+++ b/.github/workflows/maven-ci.yml
@@ -25,7 +25,7 @@
     strategy:
       matrix:
         os: [ubuntu-latest]
-        java: [8, 11]
+        java: [8]
       fail-fast: false
 
     runs-on: ${{ matrix.os }}
diff --git a/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java b/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java
index a181c89..09d9c53 100644
--- a/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java
+++ b/src/main/java/org/apache/jenkins/gitpubsub/ASFGitSCMFileSystem.java
@@ -80,15 +80,14 @@
     /**
      * The default timeout for remote operations.
      */
-    private static /*mostly final*/ int REQUEST_TIMEOUT = Math.max(1000, Math.min(60000,
-            Integer.getInteger(ASFGitSCMFileSystem.class.getName() + ".REQUEST_TIMEOUT", 10000)));
+    private static /*mostly final*/ int REQUEST_TIMEOUT =
+        Integer.getInteger(ASFGitSCMFileSystem.class.getName() + ".REQUEST_TIMEOUT", 20000);
     /**
      * A request throttle switch, if greater than {@code 0L} then every request against GitWeb will sleep for
      * at least this many milliseconds before making the request.
      */
-    private static /*mostly final*/ long PRE_REQUEST_SLEEP_MILLIS = Math.max(0L, Math.min(30000L,
-            Long.getLong(ASFGitSCMFileSystem.class.getName()+".PRE_REQUEST_SLEEP_MILLIS", 0L)
-    ));
+    private static /*mostly final*/ long PRE_REQUEST_SLEEP_MILLIS =
+        Long.getLong(ASFGitSCMFileSystem.class.getName()+".PRE_REQUEST_SLEEP_MILLIS", 0L);
     /**
      * A kill switch, if {@code true} then the {@link ASFGitSCMFileSystem} will be disabled and the standard
      * {@link GitSCMFileSystem} will be used instead, resulting in a local cache of the git repositories on the