Fixed small typo, replaced DB connection details in Makefile by .env loading

Makefile

@@ -5,11 +5,6 @@ COMMIT := $(shell git rev-parse --short HEAD)
 BUILD_DATE := $(shell date -u '+%Y-%m-%d_%H:%M:%S')
 BUILD_DIR = bin
 
-DBHOST = 127.0.0.1:3306
-DBNAME = docker
-DBUSER = root
-DBPASS = tiger
-
 build-all:
 	GOOS=linux GOARCH=amd64 make build
 	GOOS=linux GOARCH=arm make build
@@ -19,11 +14,7 @@ build:
 	GOOS=${GOOS} GOARCH=${GOARCH} go build \
 		-trimpath -ldflags "-s -w -X ${PROJECT}/internal/diagnostics.Version=${RELEASE} \
 		-X ${PROJECT}/internal/diagnostics.Commit=${COMMIT} \
-		-X ${PROJECT}/internal/diagnostics.BuildDate=${BUILD_DATE} \
-		-X ${PROJECT}/internal/tasks.Dbhost=${DBHOST} \
-		-X ${PROJECT}/internal/tasks.Dbname=${DBNAME} \
-		-X ${PROJECT}/internal/tasks.Dbuser=${DBUSER} \
-		-X ${PROJECT}/internal/tasks.Dbpass=${DBPASS}" \
+		-X ${PROJECT}/internal/diagnostics.BuildDate=${BUILD_DATE}" \
 		-o bin/sysctl-${GOOS}-${GOARCH} ${PROJECT}/cmd/sysctl
 	cp ./bin/sysctl-${GOOS}-${GOARCH} ./bin/sysctl