Removed dependency on wget, and bumped rebar3 version

Makefile

@@ -1,14 +1,17 @@
 PROJECT = esqlite
 DIALYZER = dialyzer
 
+ERL       ?= erl
 REBAR3 := $(shell which rebar3 2>/dev/null || echo ./rebar3)
-REBAR3_VERSION := 3.10.0
+REBAR3_VERSION := 3.14.1
 REBAR3_URL := https://github.com/erlang/rebar3/releases/download/$(REBAR3_VERSION)/rebar3
 
 all: compile
 
 ./rebar3:
-	wget $(REBAR3_URL)
+	$(ERL) -noshell -s inets -s ssl \
+	 -eval '{ok, saved_to_file} = httpc:request(get, {"$(REBAR3_URL)", []}, [], [{stream, "./rebar3"}])' \
+	 -s init stop
 	chmod +x ./rebar3
 
 compile: rebar3