chore: update bump script to use lerna flag --exact (aws#4510)

Follow-up to aws#4470 - specifying this flag to specify cross-dependency
version numbers exactly rather than with a caret(^).

Minor fix to display the expected version when we're checking
that dependencies use point versions.

bump.sh

@@ -21,7 +21,7 @@ export NODE_OPTIONS="--max-old-space-size=4096 ${NODE_OPTIONS:-}"
 
 /bin/bash ./install.sh
 
-npx lerna version ${version} --force-publish=* --no-git-tag-version --no-push
+npx lerna version ${version} --exact --force-publish=* --no-git-tag-version --no-push
 
 # Another round of install to fix package-lock.jsons
 /bin/bash ./install.sh

packages/@aws-cdk/core/lib/construct.ts

@@ -196,7 +196,7 @@ export class ConstructNode {
   /**
    * Returns the child construct that has the id `Default` or `Resource"`.
    * This is usually the construct that provides the bulk of the underlying functionality.
-   * Useful for modifications of the underlying construct that are not avialable at the higher levels.
+   * Useful for modifications of the underlying construct that are not available at the higher levels.
    *
    * @throws if there is more than one child
    * @returns a construct or undefined if there is no default child

tools/pkglint/lib/rules.ts

@@ -653,7 +653,7 @@ export class MustDependonCdkByPointVersions extends ValidationRule {
 
         pkg.report({
           ruleName: this.name,
-          message: `dependency ${depName}: dependency version must be ${monoRepoVersion}`,
+          message: `dependency ${depName}: dependency version must be ${expectedVersion}`,
           fix: () => pkg.addDependency(depName, expectedVersion)
         });
       }