Fix TimWolla's last name

adminer/maintainer.md

@@ -1 +0,0 @@
-../.common-templates/maintainer-community.md

adminer/maintainer.md

@@ -0,0 +1 @@
+[Tim Düsterhus (of the Docker Community)](%%GITHUB-REPO%%)

spiped/maintainer.md

@@ -1 +1 @@
-[Tim Wolla (of the Docker Community)](%%GITHUB-REPO%%), [with Colin's support (from spiped upstream)](https://github.com/docker-library/official-images/pull/1714#issuecomment-219556607)
+[Tim Düsterhus (of the Docker Community)](%%GITHUB-REPO%%), [with Colin's support (from spiped upstream)](https://github.com/docker-library/official-images/pull/1714#issuecomment-219556607)