Link OpenSSL dynamically (#10302)

## Problem
Statically linked OpenSSL is buggy in multithreaded environment:
- https://github.com/neondatabase/cloud/issues/16155
- https://github.com/neondatabase/neon/issues/8275

## Summary of changes
- Link OpenSSL dynamically (revert OpenSSL part from
https://github.com/neondatabase/neon/pull/8074)

Before:
```
ldd /usr/local/v17/lib/libpq.so
        linux-vdso.so.1 (0x0000ffffb5ce4000)
        libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000ffffb5c10000)
        libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffffb5650000)
        /lib/ld-linux-aarch64.so.1 (0x0000ffffb5ca7000)
```

After:
```
ldd /usr/local/v17/lib/libpq.so
        linux-vdso.so.1 (0x0000ffffbf3e8000)
        libssl.so.3 => /lib/aarch64-linux-gnu/libssl.so.3 (0x0000ffffbf260000)
        libcrypto.so.3 => /lib/aarch64-linux-gnu/libcrypto.so.3 (0x0000ffffbec00000)
        libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000ffffbf1c0000)
        libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000ffffbea50000)
        /lib/ld-linux-aarch64.so.1 (0x0000ffffbf3ab000)
```

Dockerfile

@@ -71,6 +71,7 @@ RUN set -e \
         ca-certificates \
 	# System postgres for use with client libraries (e.g. in storage controller)
         postgresql-15 \
+        openssl \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
     && useradd -d /data neon \
     && chown -R neon:neon /data

Makefile

@@ -3,7 +3,6 @@ ROOT_PROJECT_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
 # Where to install Postgres, default is ./pg_install, maybe useful for package managers
 POSTGRES_INSTALL_DIR ?= $(ROOT_PROJECT_DIR)/pg_install/
 
-OPENSSL_PREFIX_DIR := /usr/local/openssl
 ICU_PREFIX_DIR := /usr/local/icu
 
 #
@@ -26,11 +25,9 @@ endif
 ifeq ($(shell test -e /home/nonroot/.docker_build && echo -n yes),yes)
 	# Exclude static build openssl, icu for local build (MacOS, Linux)
 	# Only keep for build type release and debug
-	PG_CFLAGS += -I$(OPENSSL_PREFIX_DIR)/include
 	PG_CONFIGURE_OPTS += --with-icu
 	PG_CONFIGURE_OPTS += ICU_CFLAGS='-I/$(ICU_PREFIX_DIR)/include -DU_STATIC_IMPLEMENTATION'
 	PG_CONFIGURE_OPTS += ICU_LIBS='-L$(ICU_PREFIX_DIR)/lib -L$(ICU_PREFIX_DIR)/lib64 -licui18n -licuuc -licudata -lstdc++ -Wl,-Bdynamic -lm'
-	PG_CONFIGURE_OPTS += LDFLAGS='-L$(OPENSSL_PREFIX_DIR)/lib -L$(OPENSSL_PREFIX_DIR)/lib64 -L$(ICU_PREFIX_DIR)/lib -L$(ICU_PREFIX_DIR)/lib64 -Wl,-Bstatic -lssl -lcrypto -Wl,-Bdynamic -lrt -lm -ldl -lpthread'
 endif
 
 UNAME_S := $(shell uname -s)

build-tools.Dockerfile

@@ -190,21 +190,6 @@ RUN for package in Capture::Tiny DateTime Devel::Cover Digest::MD5 File::Spec JS
     && make install \
     && rm -rf ../lcov.tar.gz
 
-# Compile and install the static OpenSSL library
-ENV OPENSSL_VERSION=1.1.1w
-ENV OPENSSL_PREFIX=/usr/local/openssl
-RUN wget -O /tmp/openssl-${OPENSSL_VERSION}.tar.gz https://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz && \
-    echo "cf3098950cb4d853ad95c0841f1f9c6d3dc102dccfcacd521d93925208b76ac8 /tmp/openssl-${OPENSSL_VERSION}.tar.gz" | sha256sum --check && \
-    cd /tmp && \
-    tar xzvf /tmp/openssl-${OPENSSL_VERSION}.tar.gz && \
-    rm /tmp/openssl-${OPENSSL_VERSION}.tar.gz && \
-    cd /tmp/openssl-${OPENSSL_VERSION} && \
-    ./config --prefix=${OPENSSL_PREFIX}  -static --static no-shared -fPIC && \
-    make -j "$(nproc)" && \
-    make install && \
-    cd /tmp && \
-    rm -rf /tmp/openssl-${OPENSSL_VERSION}
-
 # Use the same version of libicu as the compute nodes so that
 # clusters created using inidb on pageserver can be used by computes.
 #