Typos fix

[Hack666r]

Changes

1. File: /providers/util.go
   • Fixed Buidler to Builder (Line 27)
2. File: /buidler/config.go
   • Fixed buidler to builder (Line 1)
3. File: /commands/contract/push.go
   • Fixed netowrk to network (Line 118)
4. File: /rest/payloads/generated/actions/structs.conjure.go
   • Fixed invokation to invocation (Line 477)

Purpose

• Improved documentation accuracy by fixing typographical errors.
• Ensured better readability and consistency.