test: dedupe test package name

This package name is used in a different test already

### Changes are visible to end-users: no

### Test plan

- Covered by existing test cases

Author: jbedard

.aspect/rules/external_repository_action_cache/npm_translate_lock_LTE4Nzc1MDcwNjU=

@@ -28,7 +28,7 @@ js/private/test/js_run_devserver/package.json=-459994543
 js/private/test/node-patches/package.json=-2062409266
 js/private/worker/src/package.json=49905594
 npm/private/test/npm_package/package.json=-1991705133
-npm/private/test/npm_package_publish/package.json=-646566766
+npm/private/test/npm_package_publish/package.json=1501316979
 npm/private/test/package.json=1575868543
 npm/private/test/vendored/is-odd/package.json=1041695223
 npm/private/test/vendored/lodash-4.17.21.tgz=-1206623349

npm/private/test/npm_package_publish/package.json

@@ -1,4 +1,4 @@
 {
-    "name": "@mycorp/pkg-b",
+    "name": "@mycorp/pkg-to-publish",
     "private": true
 }

npm/private/test/npm_package_publish/test.sh

@@ -7,11 +7,11 @@ readonly PUBLISH_B="$2"
 # to ensure package directory is properly passed and npm can read it.
 $PUBLISH_A 2>pub_a.log
 
-cat pub_a.log | grep 'npm notice package: @mycorp/pkg-b@'
+cat pub_a.log | grep 'npm notice package: @mycorp/pkg-to-publish@'
 
 # shellcheck disable=SC2181
 if [ $? != 0 ]; then
-    echo "FAIL: expected 'npm notice package: @mycorp/pkg-b@' error, GOT: $(cat pub_a.log)"
+    echo "FAIL: expected 'npm notice package: @mycorp/pkg-to-publish@' error, GOT: $(cat pub_a.log)"
     exit 1
 fi