fix: append insertText instead of variable labels

[acao]

fix a potential issue where field(arg: $| in codemirror-graphql might have autocompletion insert of $$variable because of recent changes to completion for monaco-graphql/vscode-graphql

[changeset-bot]

🦋 Changeset detected

Latest commit: c1cf82c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
graphql-language-service-interface	Patch

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[github-actions]

🚀 Deployed on https://61aa99c6d3d106358905bce5--graphiql-webpack-example.netlify.app

[codecov]

Codecov Report

Merging #2076 (c1cf82c) into main (2d91916) will decrease coverage by 2.16%.
The diff coverage is 67.67%.

@@            Coverage Diff             @@
##             main    #2076      +/-   ##
==========================================
- Coverage   65.70%   63.54%   -2.17%     
==========================================
  Files          85       94       +9     
  Lines        5106     5483     +377     
  Branches     1631     1690      +59     
==========================================
+ Hits         3355     3484     +129     
- Misses       1747     1994     +247     
- Partials        4        5       +1     

Impacted Files	Coverage Δ
packages/codemirror-graphql/src/hint.ts	94.73% <ø> (ø)
packages/codemirror-graphql/src/lint.ts	100.00% <ø> (ø)
packages/codemirror-graphql/src/results/mode.ts	47.05% <ø> (ø)
...kages/codemirror-graphql/src/utils/forEachState.ts	100.00% <ø> (ø)
...ckages/codemirror-graphql/src/utils/mode-indent.ts	0.00% <0.00%> (ø)
packages/codemirror-graphql/src/variables/hint.ts	89.70% <ø> (ø)
packages/codemirror-graphql/src/variables/mode.ts	79.48% <ø> (ø)
packages/graphiql/src/components/QueryEditor.tsx	63.96% <ø> (ø)
...graphiql/src/components/__tests__/ExampleSchema.ts	100.00% <ø> (ø)
packages/graphiql/src/utility/fillLeafs.ts	5.33% <ø> (ø)
... and 44 more

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[github-actions]

🚀 Deployed on https://61aa99d957ec8132c06c563a--graphiql-test.netlify.app

[github-actions]

The latest changes of this PR are available as canary in npm (based on the declared changesets):

codemirror-graphql@1.2.6-canary-eb5c4300.0
graphiql@1.5.9-canary-eb5c4300.0
graphql-language-service@3.2.6-canary-eb5c4300.0
graphql-language-service-cli@3.2.8-canary-eb5c4300.0
graphql-language-service-interface@2.9.6-canary-eb5c4300.0
graphql-language-service-server@2.7.8-canary-eb5c4300.0
monaco-graphql@0.6.6-canary-eb5c4300.0

[github-actions]

🚀 Deployed on https://61aa9a10fe27d935e36f12db--monaco-graphql.netlify.app