Upgrade local dev to use electric beta.15 #2140

Job	Run time
typecheck / typecheck	3m 25s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 49s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 54s
units / 🧪 Unit Tests	2m 16s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	4m 35s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 38s
	18m 37s

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