Support Pillow v10

Pillow 9.5 deprecated the getsize method for fonts in favor of its
new getbbox, and then getsize was removed in Pillow 10.. Adjust the
call we use for captcha generation so it will continue working, and
declare a requirement for the earliest forward-compatible release.

Change-Id: Ib35eea077d7f8c428493ef8e4cfe00e05e580a6f

lodgeit/lib/captcha.py

@@ -151,7 +151,7 @@ class TextLayer(Layer):
         # draw grayscale image white on black
         text_image = Image.new('L', image.size, 0)
         draw = ImageDraw.Draw(text_image)
-        text_size = self.font.getsize(self.text)
+        text_size = self.font.getbbox(self.text)
         x = int((image.size[0] - text_size[0]) * self.alignment[0] + 0.5)
         y = int((image.size[1] - text_size[1]) * self.alignment[1] + 0.5)
         draw.text((x, y), self.text, font=self.font,

requirements.txt

@@ -7,6 +7,6 @@ SQLAlchemy<2.0.0
 PyMySQL
 simplejson
 Babel
-pillow
+pillow>=9.5
 pytz
 MarkupSafe