PR abseil#1604: Add privacy manifest

Imported from GitHub PR abseil#1604

Looks like abseil is not using any of the APIs listed in https://developer.apple.com/documentation/bundleresources/privacy_manifest_files/describing_use_of_required_reason_api?language=objc, so adding an empty manifest file.

fixes abseil#1602
Merge 79da4bd into f7d2b13

Merging this change closes abseil#1604

COPYBARA_INTEGRATE_REVIEW=abseil#1604 from HannahShiSFB:privacy-manifests 79da4bd
PiperOrigin-RevId: 600525731
Change-Id: I3fbc6dcc6e47032665a9fa72c000ae245a25dd52

PrivacyInfo.xcprivacy

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>NSPrivacyTracking</key>
+  <false/>
+  <key>NSPrivacyCollectedDataTypes</key>
+  <array/>
+  <key>NSPrivacyTrackingDomains</key>
+  <array/>
+  <key>NSPrivacyAccessedAPITypes</key>
+  <array/>
+</dict>
+</plist>

absl/abseil.podspec.gen.py

@@ -30,6 +30,9 @@
     :git => 'https://github.com/abseil/abseil-cpp.git',
     :tag => '${tag}',
   }
+  s.resource_bundles = {
+    s.module_name => 'PrivacyInfo.xcprivacy',
+  }
   s.module_name = 'absl'
   s.header_mappings_dir = 'absl'
   s.header_dir = 'absl'