grep: Update to version 3.9

- Update from version 3.8 to 3.9
- Update of rootfile not required
- Changelog
 Noteworthy changes in release 3.9 (2023-03-05) [stable]
 Bug fixes
  With -P, some non-ASCII UTF8 characters were not recognized as
  word-constituent due to our omission of the PCRE2_UCP flag. E.g.,
  given f(){ echo Perú|LC_ALL=en_US.UTF-8 grep -Po "$1"; } and
  this command, echo $(f 'r\w'):$(f '.\b'), before it would print ":r".
  After the fix, it prints the correct results: "rú:ú".
  When given multiple patterns the last of which has a back-reference,
  grep no longer sometimes mistakenly matches lines in some cases.
  [Bug#36148#13 introduced in grep 3.4]

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>

lfs/grep

@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 3.8
+VER        = 3.9
 
 THISAPP    = grep-$(VER)
 DL_FILE    = $(THISAPP).tar.xz
@@ -50,7 +50,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_BLAKE2 = 24cf6f7aa35c85f59f508969ee9731c5be1e5c613e64e636f464bbdde917bb99ba739e4b82abf08da127ad0400d62e27d139f85142035745121d381982ec6c36
+$(DL_FILE)_BLAKE2 = 33fefce2a831ad6f00f2eb1d8a063cf280635f2d9c481c98981f7a2ff143c846ab570a448c9c02c3ba08cf2c98612cb364d2d033baf92d62c4515315453cc6f9
 
 install : $(TARGET)