fix(vite): avoid adding duplicate nitro plugins when using `nitro build`

fix(vite): avoid adding duplicate nitro plugins when using `nitro build` · nitrojs/nitro@0da93bd

Original file line number	Diff line number	Diff line change
`@@ -7,10 +7,13 @@ export async function viteBuild(nitro: Nitro) {`
`7`	`7`	throw new Error("Nitro dev CLI does not supports vite. Please use `vite dev` instead.");
`8`	`8`	`}`
`9`	`9`	`const { createBuilder } = await import((nitro.options as any).__vitePkg__ \|\| "vite");`
	`10`	`+const pluginInstance = nitroPlugin({ _nitro: nitro });`
	`11`	`+(globalThis as any).__nitro_build__ = true;`
`10`	`12`	`const builder = await createBuilder({`
`11`	`13`	`base: nitro.options.rootDir,`
`12`		`-plugins: [await nitroPlugin({ _nitro: nitro })],`
	`14`	`+plugins: [pluginInstance],`
`13`	`15`	`logLevel: isTest ? "warn" : undefined,`
`14`	`16`	`});`
	`17`	`+delete (globalThis as any).__nitro_build__;`
`15`	`18`	`await builder.buildApp();`
`16`	`19`	`}`