Update Vue to v2.7.15

This MR contains the following updates:

Package	Type	Update	Change
vue (source)	dependencies	patch	2.7.14 -> 2.7.15
vue-template-compiler (source)	dependencies	patch	2.7.14 -> 2.7.15

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

vuejs/vue

v2.7.15

Compare Source

Bug Fixes

• compiler-sfc: add semicolon after defineProps statement (#​12879) (51fef2c)
• compiler-sfc: fix macro usage in multi-variable declaration (#​12873) (d27c128)
• compiler-sfc: Optimize the value of emitIdentifier (#​12851) (bb59751)
• compiler-sfc: Resolve object expression parsing errors in v-on (#​12862) (b8c8b3f)
• lifecycle: scope might changed when call hook (#​13070) (74ca5a1)
• patch: clone insert hooks to avoid being mutated during iteration (#​12905) (c223634)
• types/sfc: improve the type inference using withDefaults (#​12872) (099401e)
• types: correct serverPrefetch this type (#​13068) (67c1d26), closes #​12488

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