fix(compiler-cli): require @jridgewell/sourcemap-codec 1.6.0 or later - #71453

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• Tests for the changes have been added (for bug fixes / features)
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PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• angular.dev application / infrastructure changes
• Other... Please describe:

What is the current behavior?

compiler-cli bundles magic-string 1.x, which imports encodeRangeMappings from @jridgewell/sourcemap-codec. That export was added in 1.6.0, but compiler-cli still declares ^1.4.14. If a project's lockfile already has 1.4.x or 1.5.x, the package manager keeps it and importing @angular/compiler-cli throws a SyntaxError.

Issue Number: #71452

What is the new behavior?

The range is now ^1.6.0, so package managers install a version that has the export.

Does this PR introduce a breaking change?

• Yes
• No

Other information