3600 [share] Bump version for NNBD stable (cla: yes, nnbd, p: share)

3601 [android_intent] Bump version for NNBD stable (cla: yes, nnbd, p: android_intent)

3602 [shared_preferences] Bump app-facing version for NNBD stable (cla: yes, nnbd, p: shared_preferences)

3603 [url_launcher] Bump app-facing version for NNBD stable (cla: yes, nnbd, p: url_launcher)

3605 [file_selector_platform_interface] null safety stable release (cla: yes, nnbd, p: file_selector)

3607 [android_intent] Fix Flutter SDK version (cla: yes, nnbd, p: android_intent)