refactor(logger): remove unused dependencies as a stringified metaField (#45477)

As part of future changes, we need to correct the stringification logic
when `branch` is an object.

While looking at this, we noticed that `dependencies` is - likely - an
array of items being handled by `.toString()`ing them.

However, there's no existing cases in the codebase of this behaviour, so
we can remove it from `metaFields`.

Co-authored-by: Claude Sonnet 5 <jamie.tanna+claude-code@mend.io>

Author: jamietanna

lib/logger/pretty-stdout.spec.ts

@@ -70,15 +70,6 @@ describe('logger/pretty-stdout', () => {
         );
       },
     );
-
-    it('stringifies a non-string (array) value for the dependencies meta field via Array#toString', () => {
-      const rec = partial<BunyanRecord>({
-        dependencies: ['abc', 'def'],
-      });
-      expect(prettyStdout.getMeta(rec)).toEqual(
-        util.styleText('gray', ' (dependencies=abc,def)'),
-      );
-    });
   });
 
   describe('getDetails(rec)', () => {
@@ -106,7 +97,6 @@ describe('logger/pretty-stdout', () => {
       { field: 'packageFile' },
       { field: 'depType' },
       { field: 'dependency' },
-      { field: 'dependencies' },
       { field: 'branch' },
     ])(
       'drops the $field meta string field entirely from details',
@@ -125,7 +115,6 @@ describe('logger/pretty-stdout', () => {
       { field: 'packageFile' },
       { field: 'depType' },
       { field: 'dependency' },
-      { field: 'dependencies' },
       { field: 'branch' },
     ])(
       'drops the $field meta field entirely from details, even when non-string',

lib/logger/pretty-stdout.ts

@@ -24,7 +24,6 @@ const metaFields = [
   'packageFile',
   'depType',
   'dependency',
-  'dependencies',
   'branch',
 ];