profiles: tesseract: disable private-tmp to fix ocrmypdf (#6552)

As reported by @kmille[1]:

The current `tesseract` profile breaks `ocrmypdf`:

    kmille@linbox:scans ocrmypdf C.pdf del.pdf
    Scanning contents     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 1/1 0:00:00
        1  Error, could not create hOCR output file: No such file or directory                             tesseract.py:253
        1  Error, could not create TXT output file: No such file or directory                              tesseract.py:253
    OCR                   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━   0% 0/1 -:--:--
    An exception occurred while executing the pipeline                                                       _common.py:294
    Traceback (most recent call last):
      File "/usr/lib/python3.12/site-packages/ocrmypdf/_pipelines/_common.py", line 259, in
    cli_exception_handler
        return fn(options, plugin_manager)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    [...]
      File "/usr/lib/python3.12/pathlib.py", line 840, in stat
        return os.stat(self, follow_symlinks=follow_symlinks)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    FileNotFoundError: [Errno 2] No such file or directory: '/tmp/ocrmypdf.io.0od81kk5/000001_ocr_hocr.hocr'

These are some of the commands that run in background:

    [...]
    2024/11/23 22:13:53 PID=403915 UID=0     CMD=/usr/bin/firejail /usr/bin/tesseract --list-langs
    2024/11/23 22:13:53 PID=403917 UID=0     CMD=/run/firejail/lib/fcopy /usr/bin/text2image /run/firejail/mnt/bin
    2024/11/23 22:13:53 PID=403939 UID=1000  CMD=gs -dQUIET [...] -f /tmp/ocrmypdf.io.0od81kk5/origin.pdf
    [...]
    2024/11/23 22:14:03 PID=403953 UID=0     CMD=tesseract -l eng /tmp/ocrmypdf.io.0od81kk5/000001_ocr.png [...]

Fixes #6550.

[1] #6550 (comment)

Reported-by: @kmille
Suggested-by: @kmille

etc/profile-m-z/tesseract.profile

@@ -57,7 +57,7 @@ private-cache
 private-dev
 private-etc
 #private-lib libtesseract.so.*
-private-tmp
+#private-tmp # breaks ocrmypdf (see #6550)
 
 dbus-user none
 dbus-system none