brltty-6.8-160000.2.2

- Update to version 6.8:
  + Too many changes; please read ChangeLog
- API version is now 0.8.6.

- Drop libbraille plugin. Libbraille is unmaintained and unlikely
  to be used nowadays, and it links against an old version of
  libusb (jsc#PED-10531).

- Set umask to generate brlapi.key with correct permissions; avoid
  having the file temporarily world-readable (bsc#1235438).

- Update to version 6.7:
  + Too many changes; please read ChangeLog
- Drop e6707d5e.patch: fixed upstream.
- API version is now 0.8.6.

- Added patch:
  * brltty-reproducible-jar-mtime.patch
    + Use SOURCE_DATE_EPOCH for reproducible jar mtime
    + Applied if building with Java >= 17

- For the correct generation of pkgIndex.tcl it is required that
  libbrlapi_tcl can runtime-link to libbrlapi at install time.
  Set LD_LIBRARY_PATH to allow that.

- Work around a syntactic change to TCL_PACKAGE_PATH to fix build
  with Tcl 8.6.15.

- Add %python3_fix_shebang_path to fix binaries dependency on
  /usr/bin/python3

- README.SUSE: add documentation about the state of security of the brltty
  daemon (bsc#1214158).

- Use ocaml-rpm-macros to track OCaml ABI
- Reduce amount of rpmlint warnings with brltty.rpmlintrc