chore(deps): update dependency webpack-sources to v3.3.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
webpack-sources	3.2.3 → 3.3.4

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Release Notes

webpack/webpack-sources (webpack-sources)

v3.3.4

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Fixes

• sync SourceMapSource constructor types with sourceAndMap method (#​176)

v3.3.3

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Fixes

• generate last column mapping even when source is missing for ConcatSource

v3.3.2

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Fixes

• [Types] Using HashLike name instead Hash

v3.3.1

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Fixes

• Always use a buffer to calculate the hash
• [Types] Added debugId and ignoreList fields to RawSourceMap type

v3.3.0

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Features

• Added types
• Added ability to reduce memory consumed

Performance

• Avoid extra calculation for hash updates

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