Fix fetchart colors broken by 67e668d (#6273)

Fetchart colors were broken by 67e668d.
Since that commit fetchart displays this, with escape codes instead of
colorized output:
```
fetchart: Alasdair Fraser & Natalie Haas - Meridians: �[37mhas album art�[39;49;00m
```

This fixes it by using `ui.print_` instead of `Logger`. This seems to be
in line with other plugins such as play:

https://github.com/beetbox/beets/blob/1a899cc92af57b72a76570fb37d1c4eda0f5e842/beetsplug/play.py#L135

Author: snejus

beetsplug/fetchart.py

@@ -1588,7 +1588,7 @@ def batch_fetch_art(
                     message = ui.colorize(
                         "text_highlight_minor", "has album art"
                     )
-                    self._log.info("{}: {}", album, message)
+                    ui.print_(f"{album}: {message}")
             else:
                 # In ordinary invocations, look for images on the
                 # filesystem. When forcing, however, always go to the Web
@@ -1601,4 +1601,4 @@ def batch_fetch_art(
                     message = ui.colorize("text_success", "found album art")
                 else:
                     message = ui.colorize("text_error", "no art found")
-                self._log.info("{}: {}", album, message)
+                ui.print_(f"{album}: {message}")

docs/changelog.rst

@@ -37,6 +37,7 @@ New features:
   differences in metadata source styles.
 - :doc:`plugins/spotify`: Added support for multi-artist albums and tracks,
   saving all contributing artists to the respective fields.
+- :doc:`plugins/fetchart`: Fix colorized output text.
 - :doc:`plugins/ftintitle`: Featured artists are now inserted before brackets
   containing remix/edit-related keywords (e.g., "Remix", "Live", "Edit") instead
   of being appended at the end. This improves formatting for titles like "Song 1

test/plugins/test_fetchart.py

@@ -98,3 +98,8 @@ def test_filesystem_picks_up_hidden_file(self):
         self.run_command("fetchart")
         self.album.load()
         self.check_cover_is_stored()
+
+    def test_colorization(self):
+        self.config["ui"]["color"] = True
+        out = self.run_with_output("fetchart")
+        assert " - the älbum: \x1b[1;31mno art found\x1b[39;49;00m\n" == out