Add test for changing variables with network-only fetch policy

[jerelmiller]

Supercedes #12230

This will likely be solved by #12556 so we'll add this test case to the test suite once #12556 is merged.

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Latest commit: 794e89f

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[pkg-pr-new]

npm i https://pkg.pr.new/apollographql/apollo-client/@apollo/client@12598

commit: 794e89f

[github-actions]

size-limit report 📦

Path	Size
import { ApolloClient, InMemoryCache, HttpLink } from "@apollo/client" (CJS)	42.71 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "@apollo/client" (production) (CJS)	37.79 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "@apollo/client"	32.66 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "@apollo/client" (production)	27.01 KB (0%)
import { ApolloProvider } from "@apollo/client/react"	5.74 KB (0%)
import { ApolloProvider } from "@apollo/client/react" (production)	959 B (0%)
import { useQuery } from "@apollo/client/react"	7.49 KB (0%)
import { useQuery } from "@apollo/client/react" (production)	2.7 KB (0%)
import { useLazyQuery } from "@apollo/client/react"	6.97 KB (0%)
import { useLazyQuery } from "@apollo/client/react" (production)	2.19 KB (0%)
import { useMutation } from "@apollo/client/react"	6.54 KB (0%)
import { useMutation } from "@apollo/client/react" (production)	1.76 KB (0%)
import { useSubscription } from "@apollo/client/react"	6.65 KB (0%)
import { useSubscription } from "@apollo/client/react" (production)	1.85 KB (0%)
import { useSuspenseQuery } from "@apollo/client/react"	8.51 KB (0%)
import { useSuspenseQuery } from "@apollo/client/react" (production)	3.73 KB (0%)
import { useBackgroundQuery } from "@apollo/client/react"	8.25 KB (0%)
import { useBackgroundQuery } from "@apollo/client/react" (production)	3.5 KB (0%)
import { useLoadableQuery } from "@apollo/client/react"	8.57 KB (0%)
import { useLoadableQuery } from "@apollo/client/react" (production)	3.81 KB (0%)
import { useReadQuery } from "@apollo/client/react"	6.51 KB (0%)
import { useReadQuery } from "@apollo/client/react" (production)	1.68 KB (0%)
import { useFragment } from "@apollo/client/react"	6.53 KB (0%)
import { useFragment } from "@apollo/client/react" (production)	1.74 KB (0%)