Not able to install thymeleaf in sts

[PushpendraKushvaha]

eclipse.buildId=4.17.2.202301310704
java.version=17.0.6
java.vendor=Eclipse Adoptium
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_IN
Framework arguments: -product org.springframework.boot.ide.branding.sts4
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.springframework.boot.ide.branding.sts4

org.eclipse.equinox.p2.transport.ecf
Error
Sat Mar 11 16:53:20 IST 2023
Unable to read repository at https://raw.githubusercontent.com/thymeleaf/thymeleaf-extras-eclipse-plugin/update-site/3.0.1/content.xml.

java.net.SocketException: Connection reset
at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:323)
at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:350)
at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:803)
at java.base/java.net.Socket$SocketInputStream.read(Socket.java:966)
at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:484)
at java.base/sun.security.ssl.SSLSocketInputRecord.readHeader(SSLSocketInputRecord.java:478)
at java.base/sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:160)
at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:111)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1510)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1425)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:455)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:426)
at org.apache.hc.client5.http.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:273)
at org.apache.hc.client5.http.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:241)
at org.apache.hc.client5.http.impl.io.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:148)
at org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:396)
at org.apache.hc.client5.http.impl.classic.InternalExecRuntime.connectEndpoint(InternalExecRuntime.java:158)
at org.apache.hc.client5.http.impl.classic.InternalExecRuntime.connectEndpoint(InternalExecRuntime.java:168)
at org.apache.hc.client5.http.impl.classic.ConnectExec.execute(ConnectExec.java:136)
at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at org.apache.hc.client5.http.impl.classic.ExecChainElement$1.proceed(ExecChainElement.java:57)
at org.apache.hc.client5.http.impl.classic.ProtocolExec.execute(ProtocolExec.java:175)
at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at org.apache.hc.client5.http.impl.classic.ExecChainElement$1.proceed(ExecChainElement.java:57)
at org.apache.hc.client5.http.impl.classic.HttpRequestRetryExec.execute(HttpRequestRetryExec.java:96)
at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at org.apache.hc.client5.http.impl.classic.ExecChainElement$1.proceed(ExecChainElement.java:57)
at org.apache.hc.client5.http.impl.classic.ContentCompressionExec.execute(ContentCompressionExec.java:133)
at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at org.apache.hc.client5.http.impl.classic.ExecChainElement$1.proceed(ExecChainElement.java:57)
at org.apache.hc.client5.http.impl.classic.RedirectExec.execute(RedirectExec.java:115)
at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
at org.apache.hc.client5.http.impl.classic.InternalHttpClient.doExecute(InternalHttpClient.java:170)
at org.apache.hc.client5.http.impl.classic.CloseableHttpClient.execute(CloseableHttpClient.java:75)
at org.eclipse.ecf.provider.filetransfer.httpclient5.HttpClientFileSystemBrowser.runRequest(HttpClientFileSystemBrowser.java:251)
at org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(AbstractFileSystemBrowser.java:71)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

Can someone please provide solution for this. Thanks in advance...