Fix variable dates and remove script (#975)

This PR fixes 16's variables and remove the script.

Author: Andriciuc

.github/workflows/generate-release-metadata.yml

@@ -1,20 +1,20 @@
 # PG Variables set for HTML output
 # See also mkdocs.yml plugins.with-pdf.cover_subtitle and output_path
 
-release: 2026-05-14
-dockertag: 2026-05-14
-pgversion: 2026-05-14
-pgsmversion: 2026-05-14
+release: 'release-notes-v16.14'
+dockertag: '16.14'
+pgversion: '16'
+pgsmversion: '2.3.2'
 
 
-date: 2026-05-14
+date:
   16_14: 2026-05-14
-  16_13: 2026-05-14
-  16_11: 2026-05-14
-  16_10: 2026-05-14
-  16_9_1: 2026-05-14
-  16_9: 2026-05-14
-  16_8: 2026-05-14
-  16_6: 2026-05-14
-  16_4: 2026-05-14
+  16_13: 2026-02-26
+  16_11: 2025-12-01
+  16_10: 2025-09-11
+  16_9_1: 2025-07-10
+  16_9: 2025-05-29
+  16_8: 2025-02-27
+  16_6: 2024-12-03
+  16_4: 2024-09-10