Increase GraalVM builder memory to 14GB

[nscuro]

Description

Increases GraalVM builder memory to 14GB.

Public GitHub Actions runners have 16GB of memory available, but GraalVM per default only uses a conservative chunk of that for building (~50%). Increasing the memory available to GraalVM should hopefully speed up builds.

Addressed Issue

N/A

Additional Details

https://github.blog/news-insights/product-news/github-hosted-runners-double-the-power-for-open-source/

Checklist

• [x] I have read and understand the contributing guidelines
• ~This PR fixes a defect, and I have provided tests to verify that the fix is effective~
• [x] This PR implements an enhancement, and I have provided tests to verify that it works as intended
• ~This PR introduces changes to the database model, and I have updated the migration changelog accordingly~
• ~This PR introduces new or alters existing behavior, and I have updated the documentation accordingly~

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +18.14% (target: -1.00%)	:white_check_mark: ∅ (target: 70.00%)

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (47d8fd1fa862e306f002cef0a9d0cea960787ebe) | 201 | 132 | 65.67% | | | Head commit (cde2a1b2358654777446107ec5fd854af768cf83) | 6875 (+6674) | 5762 (+5630) | 83.81% (**+18.14%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#1519) | 0 | 0 | **∅ (not applicable)** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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