Upstream changes

• Remove "Entrust Root Certification Authority - G4"
  ref. https://bugzilla.mozilla.org/show_bug.cgi?id=1919913

• Remove "SecureSign RootCA11"
  ref. https://bugzilla.mozilla.org/show_bug.cgi?id=1918559

• Remove "Security Communication RootCA3"
  ref. https://bugzilla.mozilla.org/show_bug.cgi?id=1920641

What's Changed

• docs(webpki-roots): simplify usage example by @robjtede in #82
• webpki-ccadb: rework TLS distrust after handling by @cpu in #84
• Version 0.26.7 by @ctz in #85

New Contributors

• @robjtede made their first contribution in #82

Full Changelog: v/0.26.6...v/0.26.7