Update smenu to version 1.5.0 / rev 14 via SR 1280419
    
    https://build.opensuse.org/request/show/1280419
    by user pgen + anag_factory
    - Typo: "sles_version" -> "sle_version" in smenu.spec
    - Removal of the patch added in revision 34 (smenu-gcc15.patch, issue #46).
      This patch is no longer required as the code has been reworked.
    - Version 1.5.0
    * Fixes
      * Various modifications and corrections have been made to make the
        substitution code more robust.
      * Added several variable initializations that were missing.
      * ^H and BS now work correctly in all cases.
      * A stdin flush has been added before requesting the cursor's initial
        position.
      * Memory leaks have been fixed.
      * Highlighting in search mode works correctly in all cases.
      * Compilations problems with gcc-15 have been corrected.
      * Compiler warnings have been fixed.
      * The description of S-HOME/S-END in the manual has been corrected.
    * Improvements: