Bump uglify-js from 3.13.5 to 3.13.6

[dependabot[bot]]

Bumps uglify-js from 3.13.5 to 3.13.6.

Release notes

Sourced from uglify-js's releases.

v3.13.6

Features

• support optional chaining operator (f0de9a8b5d577221d3180c9e135d5cbda8a337c3, ce3c35fa8b4c8e9a777d19220915880cdd45f3fb)
• improve granularity of variable substitutions (16411dcb8721e9901271db74c3409e720c2f8ec5, 6ab26eef6c4bb67200f0b8b65171f774f1a16377, fb035617996c416fd68d571fe351848d0e5aa506, 4114431eec1f822e75b86753a801b720dbe5ad04, 203f4b7ad9994f85472402c5be8474755d1d835d, 3094eaaa89b3993051e307804dd5daee1cf7146a, d464be3f3f7ef91c7083e16210cc7d1b8a337816)
• extend circular self-reference eliminations (53b57ee57e3d00792f70685e6b4531e6d990ca27, 19d232badb0d9b16f447e89c33998fcf542496ce)

Bug Fixes

• __proto__ accessor (d833e66d23cab3c9c03a99a9cf118647bf862868, 8e4a19ffec0506c25aebb05e2c84ec32ff307642, df980db4a887bf6d48d872d8dd61713dc42f7842, 8bbfaacdae0b63987652766b9f3a327ff6d06231, ac1f7d689b7dbd6311a6e8eaa633072db9d9703c)
• default parameter (ee9ceb79ca61c8adb9bbf7e82459ab0bbe3aaced)
• property accessor (bbca9de9cd7e715bf62a8c624cd3f53e4386b566, bb225367cbf427c6588a541c3936f94b67cbc1c5)
• template literal (5d9224deb893c383e9a2c2b11c5926db96bd7a1f)

Commits

• 7b8570f v3.13.6
• bb22536 fix corner case collapse_vars (#4921)
• bbca9de fix corner case in collapse_vars (#4919)
• ee9ceb7 fix corner case in collapse_vars (#4917)
• ac1f7d6 fix corner case in collapse_vars (#4915)
• 19d232b fix corner case in unused (#4913)
• d464be3 fix corner case in collapse_vars (#4911)
• 3094eaa fix corner case in collapse_vars (#4909)
• ce3c35f fix corner case in unused (#4907)
• 5d9224d fix corner cases with template literals (#4903)
• Additional commits viewable in compare view

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