CLI: Do not recomment frameworkVersion when running pre release

[medikoo]

When playing with v3 pre-release spotted the following log, I think we should not recommend setting frameworkVersion when pre-release is run:

To ensure safe major version upgrades ensure "frameworkVersion" setting in service configuration (recommended setup: "frameworkVersion: ^3.0.0-pre")

[codecov]

Codecov Report

Merging #10204 (150d0e1) into master (6a2be57) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 150d0e1 differs from pull request most recent head f37cd06. Consider uploading reports for the commit f37cd06 to get more accurate results

@@           Coverage Diff           @@
##           master   #10204   +/-   ##
=======================================
  Coverage   85.35%   85.35%           
=======================================
  Files         339      339           
  Lines       13831    13831           
=======================================
  Hits        11806    11806           
  Misses       2025     2025           

Impacted Files	Coverage Δ
lib/classes/Service.js	85.71% <100.00%> (ø)

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[pgrzesik]

👍