Storekit 2: update deployment targets (#977)

* updated deployment targets in Package.swift

* updated deployment targets in Podspec

* updated deployment targets in xcode project

* updated deployment target in cocoapods integration tests

* updated deployment target in SPM integration tests

* Added note in the v4_api_updates doc to document the new OS requirements

* reverted os version for watchOS back to "6.2" since it seems like `v6_2` doesn't work

IntegrationTests/XcodeDirectIntegration/XcodeDirectIntegration.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -6,8 +6,8 @@
         "repositoryURL": "https://github.com/mattgallagher/CwlCatchException.git",
         "state": {
           "branch": null,
-          "revision": "682841464136f8c66e04afe5dbd01ab51a3a56f2",
-          "version": "2.1.0"
+          "revision": "35f9e770f54ce62dd8526470f14c6e137cef3eea",
+          "version": "2.1.1"
         }
       },
       {
@@ -15,17 +15,17 @@
         "repositoryURL": "https://github.com/mattgallagher/CwlPreconditionTesting.git",
         "state": {
           "branch": null,
-          "revision": "02b7a39a99c4da27abe03cab2053a9034379639f",
-          "version": "2.0.0"
+          "revision": "fb7a26374e8570ff5c68142e5c83406d6abae0d8",
+          "version": "2.0.2"
         }
       },
       {
         "package": "Nimble",
-        "repositoryURL": "https://github.com/Quick/Nimble.git",
+        "repositoryURL": "https://github.com/quick/nimble",
         "state": {
-          "branch": null,
-          "revision": "af1730dde4e6c0d45bf01b99f8a41713ce536790",
-          "version": "9.2.0"
+          "branch": "main",
+          "revision": "ea662491f7f4b6ec72656674488bf830003eaaf5",
+          "version": null
         }
       },
       {