sysadmin: qa-frontpage: Update to 0-15.d7f2691.

* hydra/modules/sysadmin/packages.scm (qa-frontpage): Update to
0-15.d7f2691.
[inputs]: Use the latest guile-fibers, add guile-debbugs and use
guile-next.

hydra/modules/sysadmin/packages.scm

@@ -39,8 +39,8 @@
   #:use-module (srfi srfi-26))
 
 (define-public qa-frontpage
-  (let ((commit "c6e4a686bdbf386d81f45cb7021c516a526a4054")
-        (revision "14"))
+  (let ((commit "d7f2691a42457483027b0d9f21e3f282e37c6e0a")
+        (revision "15"))
     (package
       (name "guix-qa-frontpage")
       (version (git-version "0" revision commit))
@@ -52,7 +52,7 @@
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "0zgdbd4w26j8bmzzjwnk0vrdsvc4dc555rsssgmdng0p0j99mcr9"))))
+                  "0q1rn4m2zqihp6iqkqh3xasm6k9k925h8sf93kak0vq2wv53hnad"))))
       (build-system gnu-build-system)
       (arguments
        (list
@@ -89,13 +89,14 @@
        (list guix
              guix-data-service
              guile-json-4
-             guile-fibers-1.1
+             guile-fibers
              guile-kolam
              guile-git
+             guile-debbugs
              guile-readline
              guile-prometheus
              guix-build-coordinator
-             (car (assoc-ref (package-native-inputs guix) "guile"))
+             guile-next
              git
              openssh))
       (native-inputs