feat: test patch for gmail/utf8

Dockerfile

@@ -2,12 +2,16 @@ FROM "alpine:3.23"
 LABEL maintainer="Cabillot Julien <dockerimages@cabillot.eu>"
 
 COPY entrypoint.sh /entrypoint.sh
+COPY patch.py /tmp/patch.py
 
 RUN apk add --no-cache offlineimap openssl && \
     adduser -D offlineimap && \
     # Force SECLEVEL=1 in imaplib2 to allow connecting to servers with weak DH keys (DH_KEY_TOO_SMALL)
     # This is required because OpenSSL 3.x in Alpine 3.23 defaults to SECLEVEL=2
-    sed -i 's/ctx = ssl.SSLContext(ssl_version)/ctx = ssl.SSLContext(ssl_version)\n                ctx.set_ciphers("DEFAULT:@SECLEVEL=1")/' /usr/lib/python3.*/site-packages/imaplib2/imaplib2.py
+    sed -i 's/ctx = ssl.SSLContext(ssl_version)/ctx = ssl.SSLContext(ssl_version)\n                ctx.set_ciphers("DEFAULT:@SECLEVEL=1")/' /usr/lib/python3.*/site-packages/imaplib2/imaplib2.py && \
+    # Patch offlineimap email generator bug for defective messages
+    python3 /tmp/patch.py && rm /tmp/patch.py
+
 COPY --chown=offlineimap offlineimaprc.*.tmpl /home/offlineimap/
 
 # Add Tini