chore: sync script deletes existing tgz packages (#27045)

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- [ ] Bugfix
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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

When testing changes locally, you can have an existing test app that you
sync the package contents to. If you have done this across different
versions of Ionic, it can install the wrong .tgz file instead of the
local changes.

Experienced here:
#27040 (review)

<!-- Issues are required for both bug fixes and features. -->
Issue URL: N/A


## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Sync script deletes all .tgz files local to the directory before
locally packing and installing the contents of the parent local packages

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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screenshots of how the component looks before and after the change. -->

---------

Co-authored-by: Liam DeBeasi <liamdebeasi@users.noreply.github.com>

Author: sean-perkins

angular/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../core
 

angular/test/base/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../../../../core
 

packages/react-router/test/base/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../../../../../core
 

packages/react/test/base/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../../../../../core
 

packages/vue-router/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../../core
 

packages/vue/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../../core
 

packages/vue/test/base/scripts/sync.sh

@@ -2,6 +2,9 @@
 
 set -e
 
+# Delete old packages
+rm -f *.tgz
+
 # Pack @ionic/core
 npm pack ../../../../../core