re-enable standalone CocoaPods subspecs

[incanus]

See background in #860 (comment). An upstream issue in the SQLite pod were blocking this (see clemensg/sqlite3pod#23) which is resolved now. We just need to wait for a release of the SQLite pod that we can refer to in the subspec properly.

[incanus]

This appears to be fixed upstream as of https://github.com/clemensg/sqlite3pod/releases/tag/v3.45.3%2B1 in late April and then https://github.com/clemensg/sqlite3pod/releases/tag/v3.46.0 today. I can look at this for a future release.

[incanus]

Will need to dig on this further, as deployment targets may need adjusted... or that could be a red herring.

Lint log:

$ pod spec lint --subspec=standalone

 -> FMDB/standalone (2.7.11)
    - ERROR | [iOS] [FMDB/standalone] xcodebuild: Returned an unsuccessful exit code. You can use `--verbose` for more information.
    - NOTE  | [FMDB/standalone] xcodebuild:  note: Using codesigning identity override: -
    - NOTE  | [FMDB/standalone] xcodebuild:  note: Building targets in dependency order
    - NOTE  | [FMDB/standalone] xcodebuild:  note: Target dependency graph (4 targets)
    - NOTE  | [iOS] [FMDB/standalone] xcodebuild:  clang: error: SDK does not contain 'libarclite' at the path '/Applications/Xcode-15.4.0.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/arc/libarclite_iphonesimulator.a'; try increasing the minimum deployment target
    - NOTE  | [iOS] [FMDB/standalone] xcodebuild:  /var/folders/4_/5s0y5tg88xj76q001s7946d00000gn/T/CocoaPods-Lint-20240523-64941-1dy1wu-FMDB/App.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'App' from project 'App')
    - NOTE  | [iOS] [FMDB/standalone] xcodebuild:  Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'Pods-App' from project 'Pods')
    - NOTE  | [iOS] [FMDB/standalone] xcodebuild:  Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'sqlite3' from project 'Pods')
    - NOTE  | [iOS] [FMDB/standalone] xcodebuild:  Pods.xcodeproj: warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'FMDB' from project 'Pods')
    - NOTE  | [FMDB/standalone] xcodebuild:  note: Using codesigning identity override: 
    - NOTE  | [FMDB/standalone] xcodebuild:  note: Signing static framework with --generate-pre-encrypt-hashes (in target 'Pods-App' from project 'Pods')
    - NOTE  | [tvOS] [FMDB/standalone] xcodebuild:  Pods.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'Pods-App' from project 'Pods')
    - NOTE  | [tvOS] [FMDB/standalone] xcodebuild:  /var/folders/4_/5s0y5tg88xj76q001s7946d00000gn/T/CocoaPods-Lint-20240523-64941-1dy1wu-FMDB/App.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'App' from project 'App')
    - NOTE  | [tvOS] [FMDB/standalone] xcodebuild:  Pods.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 9.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'sqlite3' from project 'Pods')
    - NOTE  | [tvOS] [FMDB/standalone] xcodebuild:  Pods.xcodeproj: warning: The tvOS Simulator deployment target 'TVOS_DEPLOYMENT_TARGET' is set to 11.0, but the range of supported deployment target versions is 12.0 to 17.5.99. (in target 'FMDB' from project 'Pods')

Analyzed 1 podspec.

[!] The spec did not pass validation, due to 1 error.

This is using:

ss.dependency 'sqlite3', '>= 3.45.3'