pick-24 Werk 16907 adjusted SLES 15 SP7 support according to our changelog

Author: sucthan

src/common/de/release_notes.asciidoc

@@ -65,7 +65,7 @@ Diese entnehmen Sie der xref:update_matrix#[Update-Matrix.]
 | |15 SP4 (deprecated)
 | |15 SP5
 | |15 SP6
-| |15 SP7 (once released)
+| |15 SP7 
 | |16 (once released)
 |Ubuntu |22.04 LTS Jammy Jellyfish
 | |24.04 LTS Noble Numbat

src/common/en/release_notes.asciidoc

@@ -65,7 +65,7 @@ These will be covered in the xref:update_matrix#[update matrix].
 | |15 SP4 (deprecated)
 | |15 SP5
 | |15 SP6
-| |15 SP7 (once released)
+| |15 SP7 
 | |16 (once released)
 |Ubuntu |22.04 LTS Jammy Jellyfish
 | |24.04 LTS Noble Numbat