Retain environment setting of "HOME" for tests that need os.path.expanduser()
to return a readable directory in the build chroot.

--- thefuck-3.25/tests/conftest.py
+++ thefuck-3.25/tests/conftest.py
@@ -64,6 +64,7 @@ def set_shell(monkeypatch):
 
 @pytest.fixture(autouse=True)
 def os_environ(monkeypatch):
-    env = {'PATH': os.environ['PATH']}
+    env = {'PATH': os.environ['PATH'],
+           'HOME': os.environ['HOME']}
     monkeypatch.setattr('os.environ', env)
     return env
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<tr><td><span title='2023-10-03 21:37:18 +0300'>2023-10-03</span></td><td><a href='/guix/commit/gnu/packages/gps.scm?id=8d47bfb5d646e845135795347b806c0ac1a7c6cf'>gnu: gama: Update to 2.26.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gps.scm (gama): Update to 2.26.
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<tr><td><span title='2023-07-09 10:01:04 +0300'>2023-07-09</span></td><td><a href='/guix/commit/gnu/packages/gps.scm?id=1bd6b91368b49cc2dde21f62b6e57e65fedea524'>gnu: gpsd: Download using mirror uri.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gps.scm (gpsd)[source]: Rewrite source uri to use
download mirrors.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2023-03-02 11:48:10 +0200'>2023-03-02</span></td><td><a href='/guix/commit/gnu/packages/gps.scm?id=4acda21217a623ceb9b262ef456d25298e0b0905'>gnu: gama: Update to 2.24.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/gps.scm (gama): Update to 2.24.
</span></span></td><td>Efraim Flashner</td></tr>