Update .gitignore

12 jobs for master in 99 minutes and 34 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
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build:9-debug-gcc

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passed #3080
build:9-parallel-debug-gcc

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build:9-parallel-release-gcc

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passed #3079
build:9-release-gcc

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  Demo
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demo:9-debug-gcc

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demo:9-parallel-debug-gcc

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demo:9-parallel-release-gcc

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demo:9-release-gcc

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  Test
passed #3086
test:9-debug-gcc

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passed #3088
test:9-parallel-debug-gcc

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passed #3089
test:9-parallel-release-gcc

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passed #3087
test:9-release-gcc

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