fix(@schematics/update): update line end normalization for CA file read from .npmrc

Before only first line end was being replaced.
Also, the replace value was incorrectly escaped.

The CA read from cafile being corrupt resulted in broken updates
when using registry with self-signed certificate.

The workaround till this is merged is to use `ca` or `ca[]` properties in `.npmrc`.

(cherry picked from commit 5cdf4cc)

Author: minijus

packages/angular/cli/utilities/package-metadata.ts

@@ -143,7 +143,7 @@ function readOptions(
             if (typeof value === 'string') {
               const cafile = path.resolve(path.dirname(location), value);
               try {
-                options['ca'] = readFileSync(cafile, 'utf8').replace(/\r?\n/, '\\n');
+                options['ca'] = readFileSync(cafile, 'utf8').replace(/\r?\n/g, '\n');
               } catch { }
             }
             break;

packages/schematics/update/update/npm.ts

@@ -90,7 +90,7 @@ function readOptions(
             if (typeof value === 'string') {
               const cafile = path.resolve(path.dirname(location), value);
               try {
-                options['ca'] = readFileSync(cafile, 'utf8').replace(/\r?\n/, '\\n');
+                options['ca'] = readFileSync(cafile, 'utf8').replace(/\r?\n/g, '\n');
               } catch { }
             }
             break;