Fix markdown output by adding closing brackets

Closes keycloak#40297

Signed-off-by: Alexander Schwartz <aschwart@redhat.com>

Set version to 26.2.5

tagging 26.0.12

Set version to 26.2.4

Set version to 26.2.3

Set version to 26.2.2

Set version to 26.0.11

Set version to 26.2.1

Set version to 26.2.0

Set version to 26.1.5