tcl: Update to version 8.6.14

tcl: Update to version 8.6.14

- Update from version 8.6.13 to 8.6.14
- Update of rootfile
- Changelog
    8.6.14
	This is a patch release, so it primarily includes bug fixes and corrections
	to erratic behavior.  Highlighted changes are noted below.  The changes file
	at the root of the source tree contains a more complete list.  The Timelines
	of all changes are online.
		http://core.tcl-lang.org/tcl/timeline
		http://core.tcl-lang.org/tk/timeline
	   * [TIP 402] revise path normalization for x-platform UNC path support
	        *** POTENTIAL INCOMPATIBILITY ***
	   * Harmonize Tk's parse of numbers (screen distance, etc) with Tcl
	        *** POTENTIAL INCOMPATIBILITY ***
	   * Iconlist ignores options db for fg text color; affects dialogs
	        *** POTENTIAL INCOMPATIBILITY ***
	   * Aqua: XPutImage() swaps red and blue channels
	        *** POTENTIAL INCOMPATIBILITY ***
	   * [encoding convertfrom] handling of incomplete code sequences
	        *** POTENTIAL INCOMPATIBILITY ***
	   * Harmonize handling of ~ in paths across platforms.
	        *** POTENTIAL INCOMPATIBILITY ***
	   * Fix menu clone binding misbehavior, menu-20.1[2-6].
	        *** POTENTIAL INCOMPATIBILITY ***
	   * Improved performance of [exec] and [open |$cmd] on unix-lke
	     systems, especially with large memory footprints.
	   * Improve performance of large treeview destruction.
	   * Improve performance of large image insertions into text.
	   * Improve widget creation performance due to poor font caching.
	   * Fix notebook tab appearances when placed on edge other than top.
	   * Enable treeview display of partial final line.
	   * Win: restore [exec %var%] that was dropped in 8.6.13.
	   * Allow [chan create {} $cmd].  Enables simulation of server channels.
	   * Allow return from [tk scaling] in safe interps.
	   * Prevent navigation by word exposing clues to masked entry contents.
	   * Fix crashes or hangs in...
	      - [chan pop] with pending input
	      - thread finalization of reflected channels
	      - [label .l -bitmap floppy]
	      - [set tcl_precision 15; expr 6.4623485355705287e-27]
	      - [tk busy forget] and [tk busy hold]
	      - channel read into "string" Tcl_Obj can BO, and perform poorly
	      - KVO crash after destroying Aqua's first root toplevel
	      - Test treeview-6ee162c3f9
	      - Test tailcall-bug-784befb0ba
	      - Tests menu-40.[12]
	   * Repair memory leaks and errors
	      - Eliminate undefined realloc() calls
	      - Silence many warnings from -fsanitize=function
	      - Flawed interfacing with XIM
	      - Tcl_UtfToExternal writing to one-byte buffer
	      - Tcl_UtfToUniChar() handling of 0xC1.
	      - Tk_ConfigureValue could call wrong free() routine.
	      - tests getuncichar-1.* in utf.test
	      - ...and many more
	   * No more support for 32-bit Cygwin
	   * ::tcl_platform(osVersion) updated to report Windows 11
	   * Accommodate macOS deprecation of sprintf()
	   * Silence macOS 14 warnings about secure restorable state.
	   * Code changes to support ASan use-after-return detection
	   * Revise Tcl_MakeFileChannel() to better partner with pledge()
	   * Prevent false [clock format] error reports on FreeBSD
	   * Region clip & copy make better use of OS facilities.
	   * Update handling of Apple FourCC creator codes.
	   * Text selection omits first character, text-38.1
	   * Windows: improved support of non-BMP pathnames
	   * Fixed some Y2038 limitations
	   * Fix photo color drawing on X11 32-bit visuals.
	   * Fix <<MenuSelect>> regression on menus with -tearoff
	   * Correct rounding of [nsFont pointSize].
	   * zlib comment/filename error handling (zlib-8.19, zlib-8.2[012])
	   * Prevent theme change attempts after Tk finalize.
	   * Make dialogs robust against parent destruction.
	   * Make [tk_chooseColor] robust against failed grab.
	   * Fix menu parsing of @x,y indices.  menu-22.[6-9]
	   * Fix inconsistent results from [font measure].
	   * Fixed [clock scan|add] handling of abbreviated options
	   * Avoid endless loops replacing [unknown] or [history].
	   * Fix polluted error messages from [send -option].
	   * PNG photo image decoder missed a 0xFF entry.
	   * Fix failing winTime-2.1 on Windows
	   * test string-2.20.1 failed on big endian platforms
	   * Updated bundled packages, libraries, standards, data
	      - Itcl 4.2.4
	      - sqlite3 3.44.2
	      - Thread 2.8.9
	      - TDBC* 1.1.7
	      - tcltest 2.5.7
	      - libtommath 1.2.1
	      - zlib 1.3.1
	      - Unicode 15.1
	      - tzdata 2024a

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>