Boolean pixel values are no longer supported in VTK 9.2.

diff --git a/addons/vtk/test_vtkimage.cc b/addons/vtk/test_vtkimage.cc
--- a/addons/vtk/test_vtkimage.cc
+++ b/addons/vtk/test_vtkimage.cc
@@ -206,7 +206,7 @@ BOOST_AUTO_TEST_CASE_TEMPLATE( test_mhd_write_read, T, type_mhd )
        unlink(zrawfilename.str().c_str());
 }
 
-#if  VTK_MAJOR_VERSION >= 7
+#if  VTK_MAJOR_VERSION >= 7 && VTK_MAJOR_VERSION < 9
 BOOST_AUTO_TEST_CASE( test_simple_write_read_bool )
 {
        C3DBounds size(2, 3, 4);
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<tr><td><span title='2023-03-20 09:14:23 +0400'>2023-03-20</span></td><td><a href='/guix/commit/gnu/home.scm?id=1f36534c7e8f2325bff4df5d37ecc811dc63fc38'>home: 'home-environment-with-provenance' uses the HE location info.</a><span class='msg-avail'>...</span></td><td>Sergey Trofimov</td></tr>
<tr><td><span title='2023-03-13 16:41:34 +0400'>2023-03-13</span></td><td><a href='/guix/commit/gnu/home.scm?id=377c8143e7cd5e3bf3e1e8d53ba443f91c88239c'>home: Export home-environment-packages.</a><span class='msg-avail'>...</span></td><td>Sergey Trofimov</td></tr>
<tr><td><span title='2022-08-19 18:55:41 +0300'>2022-08-19</span></td><td><a href='/guix/commit/gnu/home.scm?id=e60ba7eb6dd3d5847f7111f1a2ea33492b12cbc8'>home: Fix docstring.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-08-01 00:02:04 +0200'>2022-08-01</span></td><td><a href='/guix/commit/gnu/home.scm?id=61db74a687e36e842077c5c2f4b2e2c7afcd814a'>home: Add 'home-generation-base'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-07-17 02:00:00 +0200'>2022-07-17</span></td><td><a href='/guix/commit/gnu/home.scm?id=670818a4049edb8a77a5b596fbc7558bde57165c'>Revert "home: Add 'home-generation-base'."</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2022-07-23 00:39:55 +0200'>2022-07-23</span></td><td><a href='/guix/commit/gnu/home.scm?id=5df8f7802e8b45855e8f84830677001dc631e4f7'>home: Add 'home-generation-base'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-12-19 23:39:55 +0100'>2021-12-19</span></td><td><a href='/guix/commit/gnu/home.scm?id=ed818c66d371656c869f43d7a7cbbcfba2df647b'>home: Add gexp-compiler for home-environments.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2021-10-09 19:24:18 +0300'>2021-10-09</span></td><td><a href='/guix/commit/gnu/home.scm?id=0e8d2df0f1a4ab25c482e1c427c54e19903e62f3'>Move (gnu home-services) to (gnu home services).</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2021-10-08 15:36:18 +0300'>2021-10-08</span></td><td><a href='/guix/commit/gnu/home.scm?id=ba8ddb348045f81f061a1c7f51c0f7c2b0024e71'>gnu: Move (gnu home-services) to (gnu home services).</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2021-09-09 20:26:51 +0300'>2021-09-09</span></td><td><a href='/guix/commit/gnu/home.scm?id=994c66bf846774da5104537ef1037d6a5bc56995'>gnu: home: Add doc comment about the module.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2021-09-09 20:26:50 +0300'>2021-09-09</span></td><td><a href='/guix/commit/gnu/home.scm?id=7fcc64253c2c48fee96f7925453161eb2b3a709e'>home: Add home-environment.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>