fix(ci): regenerate go.sum for robfig/cron/v3 v3.0.1

Renovate bumped github.com/robfig/cron/v3 to v3.0.1 in go.mod (edde31c)
without regenerating go.sum, leaving only the v3.0.0 hash. The Docker CI
build (go build -mod=readonly) then failed with 'missing go.sum entry for
module providing package github.com/robfig/cron/v3' on both amd64/arm64.

Run go mod tidy to regenerate go.sum (also corrects indirect markers and
drops the unused spaolacci/murmur3 entry). Verified the exact CI build
command now passes locally.

Co-Authored-By: Claude <noreply@anthropic.com>

go.mod

@@ -3,8 +3,13 @@ module thuanle.me/ip-info
 go 1.22
 
 require (
+	github.com/gin-gonic/gin v1.10.0
+	github.com/go-resty/resty/v2 v2.11.0
+	github.com/joho/godotenv v1.5.1
+	github.com/oschwald/maxminddb-golang v1.12.0
 	github.com/robfig/cron/v3 v3.0.1
 	github.com/rs/zerolog v1.33.0
+	github.com/safing/mmdbmeld v0.3.0
 )
 
 require (
@@ -14,13 +19,10 @@ require (
 	github.com/cloudwego/iasm v0.2.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.4 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
-	github.com/gin-gonic/gin v1.10.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.22.0 // indirect
-	github.com/go-resty/resty/v2 v2.11.0 // indirect
 	github.com/goccy/go-json v0.10.3 // indirect
-	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
@@ -29,10 +31,7 @@ require (
 	github.com/maxmind/mmdbwriter v1.0.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/oschwald/maxminddb-golang v1.12.0 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
-	github.com/safing/mmdbmeld v0.3.0 // indirect
-	github.com/spaolacci/murmur3 v1.1.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba // indirect