haproxy: Update HAProxy to v2.0.8

- Update haproxy download URL and hash

Signed-off-by: Christian Lachner <gladiac@gmail.com>

net/haproxy/patches/000-BUG-MINOR-stats-Add-a-missing-break-in-a-switch-statement.patch

@@ -1,27 +0,0 @@
-commit c0104fc33ccf7e843efd37cc033e4c3849a37844
-Author: Christopher Faulet <cfaulet@haproxy.com>
-Date:   Sat Sep 28 10:37:31 2019 +0200
-
-    BUG/MINOR: stats: Add a missing break in a switch statement
-    
-    A break is missing in the switch statement in the function
-    stats_emit_json_data_field(). This bug was introduced in the commit 88a0db28a
-    ("MINOR: stats: Add the support of float fields in stats").
-    
-    This patch fixes the issue #302 and #303. It must be backported to 2.0.
-    
-    (cherry picked from commit 52c91bb72ccf20e75f2f79da6ebe345cb2a768f4)
-    Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
-
-diff --git a/src/stats.c b/src/stats.c
-index 5819f459..9ec5066f 100644
---- a/src/stats.c
-+++ b/src/stats.c
-@@ -399,6 +399,7 @@ int stats_emit_json_data_field(struct buffer *out, const struct field *f)
- 		       type = "\"u64\"";
- 		       snprintf(buf, sizeof(buf), "%llu",
- 				(unsigned long long) f->u.u64);
-+		       break;
- 	case FF_FLT:   type = "\"flt\"";
- 		       snprintf(buf, sizeof(buf), "%f", f->u.flt);
- 		       break;